Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System
Killshot Classic 4-bbl EFI System

Killshot Classic 4-bbl EFI System

Exclusive Christmas Deals!
SKU: AS2012C-B
Sale price$695.99 Regular price$1,000.00
Includes the following free items!
(Only for Fuel Kit Versions)
Fuel System Type:
Technical support
Product Manual
Software
Ask us a question

The Most Affordable!

The Killshot™ Classic is our most affordable upgrade to EFI yet!!

Easier Install!

With a simplified wiring harness, the Killshot Classic makes upgrading to EFI super easy!

400 HP!

With four 65lb/hr injectors, you can support up to 400 HP on Naturally Aspirated applications!

Better Drivability!

Turn the key and experience a smoother drive than ever before with improved software design, EVEN WHEN ITS STILL COLD!!

Stock to Mild

If you have a stock or mild application, the Killshot Classic just might be your best fit for EFI conversion.

Versatile Fuel Module Options

Tailor your fuel delivery system to match your specific requirements with a choice of Fuel Module Systems, allowing you to optimize fuel flow and pressure for maximum engine performance.

255 In-line Fuel Pump System with PTFE Hose

Aces’ 255 In-line Fuel System is a complete gravity-fed fuel delivery kit to provide the proper fuel supply for most aftermarket EFI systems. The system includes the fuel pump, fuel pressure regulator, liquid-filled fuel pressure gauge, 100-micron pre-filter, 10-micron fuel filter, 40’ of –6 Teflon™ (PTFE) lined fuel line for the highest strength and resistance to gasoline and alcohol-based fuels, 6AN-8AN-HOSE Assmbly Tool, and all necessary fittings for a complete installation! This system is designed to match the power potential of EFI systems up to 650 HP. Aces’ 255 In-line Fuel System takes the guesswork out of acquiring the correct fuel system components for your EFI-equipped vehicle.

System Features:

•Complete EFI Fuel System with high quality Teflon™ (PTFE) lined –6 AN hose and all necessary fittings
•255 LPH In-line fuel pump
•Fuel Filters
•Adjustable fuel pressure regulator with gauge
•Supports EFI applications up 650hp
•6AN-8AN-HOSE Assmbly Tool for easier installation of the system

Command Center 2 Surge Tank

- Single high-volume 340LPH pump
- No needle seats or floats to get hung up or stuck!
- Can be mounted in multiple positions from vertical to horizontal
- Built-in 58 Psi Regulator no need for external regulator, can be switched to 43.5Psi regulator

Tight Fit In-tank Pump Module (255 LPH)

- Installs in almost any tank with a depth of 6 to 12 inches
- Low profile design for maximum clearance from the vehicle's floor pan
- Unique O-Ring 360-degree mounting flange for unlimited mounting options.
- Single high-quality 255 L/PH fuel pump for engines producing up to 600 HP.

Tank Conversion Pump Module (340 LPH)

- Can go from 14 in. deep pump to 6 in. by cutting tube
- Available with 340 LPH (89 GPH) fuel pump
- O-ring style 360-degree mounting flange for ease of maintenance
- Internally regulated

PRODUCT TECHNOLOGIES

Have you ever thought about EFI for your project, but were intimidated by the installation process, or worried that the typical 650HP-rated TBI system was too much for your stock or lower-powered engine? ACES has listened and developed the Killshot Classic to better suit those applications.

Key Features:

  • Plug and play
  • 400 HP
  • Easy install
  • 5”handheld with GPS speedometer
  • Next level RFI / EMI protection
  • Base calibrations set in a real world environment
  • the most affordable upgrade

The Killshot Classic has 4 65 lb./hr. injectors and is 400 HP capable. Timing control has been removed, allowing an easier installation with your existing distributor. The base calibration installed in the unit is for a mild 350 SBC with an HEI distributor and is easily scaled for other displacements. The TPS, IAC, and TMAP sensors are integrated into the unit for simpler wiring. Dual electric fan controls are retained, as well as an easy-to-use touchscreen, handheld controller for initial setup, tuning, and gauge displays. All of this means that you will spend less time with setup and be able to get your vehicle back on the road quickly!

Simpler installation, improved drivability, and at a lower cost! The Killshot Classic is the best option for your truck, daily driver, or mild cruiser!

Select ACES System：
Specifications：
Application Type
Injector Size
Built-in CDI
Timing Control
Available Colors
Flange Size
Built-in CDI?
Killshot EFI System
Killshot(Classic 6-8 Cylinder Engines)
(4) 100 lb/hr
No
Yes
Black, Polished, & Gold
4150
Yes. Blow-thru and draw-thru.
Deuces Wild 2-bbl EFI
Deuces Wild(Classic 4-8 Cylinder Engines)
(2) 100 lb/hr
No
Yes
Black & Polished
2300
Yes. Blow-thru and draw-thru.
Jackpot LS EFI - TBI System
Jackpot(LS Engines)
(4) 100 lb/hr
No
Yes
Black
4150
Yes.Blow-thru and draw-thru
Royal Flush EFI/CDI
Royal Flush(Classic 6-8 Cylinder Engines)
(4) 100 lb/hr
Yes
Yes
Black & Polished
4150
Yes. Blow-thru and draw-thru.

Holley Sniper 2

ECU Housing

ECU is mounted on the throttle body.

MCU

16-bit

Handheld

3.5" resistive touch screen

Appearance

Several separated cables & wires

Injectors

(4) 100 lb/hr injectors

HP

650 HP N/A

Timing Control & IGBT Driver

Has timing control but no IGBT driver

Spark Energy

-

Retail Price

$1,299.95

Killshot EFI System

ECU Housing

External, automotive-grade, die-cast aluminum.

MCU

32-bit, ST56 series Power Architecture™ (OEM Standard)

Handheld

5", full-color, capacitive touch screen. Includes built-in GPS chip for speedometer.

Appearance

Only one connector to throttle body (bundled).

Injectors

(4) 100 lb/hr injectors

HP

650 HP N/A

Timing Control & IGBT Driver

Has timing control features and an integrated IGBT driver

Spark Energy

Programmable dwell time. Min. of 90 MJ spark energy when using our AC2008 ignition coil.

Retail Price

$959.99

FiTech GoEFI600

ECU Housing

ECU is mounted on the throttle body.

MCU

16-bit

Handheld

3.5" screen

Appearance

Several separated cables & wires

Injectors

(4) 100 lb/hr injectors

HP

600 HP N/A

Timing Control & IGBT Driver

-

Spark Energy

-

Retail Price

$999.99

CFM Rating

800 CFM

Material

Cast Aluminum (throttle body)

Ported Vacuum

Yes

Air Cleaner Diameter

5"

Throttle Body Height

3-5/16”

MAP Sensor Rating

3-bar

Inlet/Outlet Size

-6 AN

Injector Size

100 lb/hr

Fuel PSI Required

42-48 PSI, 60 PSI max

Boost/Nitrous Compatibility

Compatible, yes. Control requires a separate module.

Available Finishes

Black ceramic, gold, pink, or polished

HP Rating

650 HP (naturally aspirated)

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Killshot EFI - Pink for Breast Cancer Awareness

Aces' Killshot EFI system is one of the most advanced throttle body injection (TBI) systems on the market. The Killshot utilizes four 100 lb/hr fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, WBO2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

The Killshot system fits most 4150-flange 4-barrel intake manifolds and is designed for easy installation and tuning. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot system has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!

For timing control, the Killshot requires a magnetic pickup or hall effects distributor and separate ignition coil. We recommend our Black Jack Pro series distributor and ignition coil for a plug & play experience.

Aces EFI Killshot™ TBI System Features

32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors

5” full-color touchscreen handheld with built-in GPS speedometer

Integrated coil driver for ignition timing control

Simple calibration wizard for initial setup- no laptop tuning required.

Self-learning fuel table

Dual fan control

Step retard for nitrous control

Boost compatibility (using laptop software)

Remote-mounted ECU to avoid common heat/vibration-induced hardware failures

3-bar TMAP sensor for boost & nitrous compatible (using laptop software)

Free laptop software available for pro applications

Compatible with Aces’ handhelds, dashes, CAN modules, and TCMs.

Bosch 4.9 WBO2 sensor

(4) 100 lb/hr injectors
Killshot EFI - Top End Kit

Killshot EFI - Top End Kit

Each Killshot EZ Tune EFI Top End Kit includes the following:

(1) Your choice of a black gold, or polished Killshot EZ Tune EFI System

(1) Black Jack Pro Series Distributor (choose engine configuration)

(1) Black Jack Pro Series Ignition Coil

Killshot EFI Master Kits (Black)

Killshot EFI Master Kits (Black)

Aces' Killshot EFI system is one of the most advanced throttle body injection (TBI) systems on the market. The Killshot utilizes four 100 lb/hr fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, WBO2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

The Killshot system fits most 4150-flange 4-barrel intake manifolds and is designed for easy installation and tuning. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot system has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!

For timing control, the Killshot requires a magnetic pickup or hall effects distributor and separate ignition coil. We recommend our Black Jack Pro series distributor and ignition coil for a plug & play experience.

Aces EFI Killshot™ TBI System Features

  • 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors
  • 5” full-color touchscreen handheld with built-in GPS speedometer
  • Integrated coil driver for ignition timing control
  • Simple calibration wizard for initial setup- no laptop tuning required.
  • Self-learning fuel table
  • Dual fan control
  • Step retard for nitrous control
  • Boost compatibility (using laptop software)
  • Remote-mounted ECU to avoid common heat/vibration-induced hardware failures
  • 3-bar TMAP sensor for boost & nitrous compatible (using laptop software)
  • Free laptop software available for pro applications
  • Compatible with Aces’ handhelds, dashes, CAN modules, and TCMs.
  • Bosch 4.9 WBO2 sensor
  • (4) 100 lb/hr injectors
Killshot EFI Master Kits (Gold)

Killshot EFI Master Kits (Gold)

Aces' Killshot EFI system is one of the most advanced throttle body injection (TBI) systems on the market. The Killshot utilizes four 100 lb/hr fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, WBO2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

The Killshot system fits most 4150-flange 4-barrel intake manifolds and is designed for easy installation and tuning. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot system has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!

For timing control, the Killshot requires a magnetic pickup or hall effects distributor and separate ignition coil. We recommend our Black Jack Pro series distributor and ignition coil for a plug & play experience.

Aces EFI Killshot™ TBI System Features

  • 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors
  • 5” full-color touchscreen handheld with built-in GPS speedometer
  • Integrated coil driver for ignition timing control
  • Simple calibration wizard for initial setup- no laptop tuning required.
  • Self-learning fuel table
  • Dual fan control
  • Step retard for nitrous control
  • Boost compatibility (using laptop software)
  • Remote-mounted ECU to avoid common heat/vibration-induced hardware failures
  • 3-bar TMAP sensor for boost & nitrous compatible (using laptop software)
  • Free laptop software available for pro applications
  • Compatible with Aces’ handhelds, dashes, CAN modules, and TCMs.
  • Bosch 4.9 WBO2 sensor
  • (4) 100 lb/hr injectors
Killshot EFI Master Kits (Polished)

Killshot EFI Master Kits (Polished)

Aces' Killshot EFI system is one of the most advanced throttle body injection (TBI) systems on the market. The Killshot utilizes four 100 lb/hr fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, WBO2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

The Killshot system fits most 4150-flange 4-barrel intake manifolds and is designed for easy installation and tuning. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot system has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!

For timing control, the Killshot requires a magnetic pickup or hall effects distributor and separate ignition coil. We recommend our Black Jack Pro series distributor and ignition coil for a plug & play experience.

Aces EFI Killshot™ TBI System Features

  • 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors
  • 5” full-color touchscreen handheld with built-in GPS speedometer
  • Integrated coil driver for ignition timing control
  • Simple calibration wizard for initial setup- no laptop tuning required.
  • Self-learning fuel table
  • Dual fan control
  • Step retard for nitrous control
  • Boost compatibility (using laptop software)
  • Remote-mounted ECU to avoid common heat/vibration-induced hardware failures
  • 3-bar TMAP sensor for boost & nitrous compatible (using laptop software)
  • Free laptop software available for pro applications
  • Compatible with Aces’ handhelds, dashes, CAN modules, and TCMs.
  • Bosch 4.9 WBO2 sensor
  • (4) 100 lb/hr injectors
Killshot EFI System

Killshot EFI System

Aces' Killshot EFI system is one of the most advanced throttle body injection (TBI) systems on the market. The Killshot utilizes four 100 lb/hr fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, WBO2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

The Killshot system fits most 4150-flange 4-barrel intake manifolds and is designed for easy installation and tuning. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot system has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!

For timing control, the Killshot requires a magnetic pickup or hall effects distributor and separate ignition coil. We recommend our Black Jack Pro series distributor and ignition coil for a plug & play experience.

Aces EFI Killshot™ TBI System Features

  • 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors
  • 5” full-color touchscreen handheld with built-in GPS speedometer
  • Integrated coil driver for ignition timing control
  • Simple calibration wizard for initial setup- no laptop tuning required.
  • Self-learning fuel table
  • Dual fan control
  • Step retard for nitrous control
  • Boost compatibility (using laptop software)
  • Remote-mounted ECU to avoid common heat/vibration-induced hardware failures
  • 3-bar TMAP sensor for boost & nitrous compatible (using laptop software)
  • Free laptop software available for pro applications
  • Compatible with Aces’ handhelds, dashes, CAN modules, and TCMs.
  • Bosch 4.9 WBO2 sensor
  • (4) 100 lb/hr injectors
Killshot EFI w/ Fuel Delivery System

Killshot EFI w/ Fuel Delivery System

Aces' Killshot EFI system is one of the most advanced throttle body injection (TBI) systems on the market. The Killshot utilizes four 100 lb/hr fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, WBO2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

The Killshot system fits most 4150-flange 4-barrel intake manifolds and is designed for easy installation and tuning. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot system has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!

For timing control, the Killshot requires a magnetic pickup or hall effects distributor and separate ignition coil. We recommend our Black Jack Pro series distributor and ignition coil for a plug & play experience.

 
Royal Flush EFI/CDI

Royal Flush EFI/CDI

Aces EFI’s Royal Flush™ EFI/CDI is the most powerful TBI system on the market! Integrating our EFI control module and CDI ignition system inside one ECU, this is a revolutionary upgrade and huge leap forward in the world of aftermarket EFI products. By using CDI, you are able to create a much hotter spark in order to burn fuel more efficiently and ensure maximum power, especially in boosted and performance applications.

The Royal Flush EFI/CDI system utilizes four 100 lb./hr. fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, wideband O2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

The system fits any 4150-flange 4-barrel intake manifold and is designed for easy installation and tuning. Installation is straightforward and easy, and the system includes everything you need to get on the road or track quickly. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot™ EFI kit has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!
    Royal Flush EFI/CDI Master Kits (Black)

    Royal Flush EFI/CDI Master Kits (Black)

    Revolutionary upgrade and huge leap forward in the world of aftermarket EFI products！
    Integrating our EFI control module and CDI ignition system inside one ECU！
    The most powerful TBI system on the planet!
    • 150/200 mj spark energy output selectable and timing control
    • Remote-mounted 32bit ECU and CDI
    • 5 Inch High Resolution Handheld tuner with GPS speedometer
    • Boost Compatible ready with 3-bar TMAP sensor
    • 2-stage Rev limiter setting for max RPM, launch control, and burn out
    • Step retard for Nitrous control
    • Laptop tuning also available for pro installation
    • Easy-to-install design, can easily be done by the average enthusiast
    • Easy-to-use calibration wizard makes initial start-up simple and easy without the need for custom tuning

    Aces EFI’s Royal Flush™ EFI/CDI is the most powerful TBI system on the market! Integrating our EFI control module and CDI ignition system inside one ECU, this is a revolutionary upgrade and huge leap forward in the world of aftermarket EFI products. By using CDI, you are able to create a much hotter spark in order to burn fuel more efficiently and ensure maximum power, especially in boosted and performance applications.

    The Royal Flush EFI/CDI system utilizes four 100 lb./hr. fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, wideband O2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

    The system fits any 4150-flange 4-barrel intake manifold and is designed for easy installation and tuning. Installation is straightforward and easy, and the system includes everything you need to get on the road or track quickly. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

    Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

    Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot™ EFI kit has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!
      Royal Flush EFI/CDI Master Kits (Polished)

      Royal Flush EFI/CDI Master Kits (Polished)

      Revolutionary upgrade and huge leap forward in the world of aftermarket EFI products！
      Integrating our EFI control module and CDI ignition system inside one ECU！
      The most powerful TBI system on the planet!
      • 150/200 mj spark energy output selectable and timing control
      • Remote-mounted 32bit ECU and CDI
      • 5 Inch High Resolution Handheld tuner with GPS speedometer
      • Boost Compatible ready with 3-bar TMAP sensor
      • 2-stage Rev limiter setting for max RPM, launch control, and burn out
      • Step retard for Nitrous control
      • Laptop tuning also available for pro installation
      • Easy-to-install design, can easily be done by the average enthusiast
      • Easy-to-use calibration wizard makes initial start-up simple and easy without the need for custom tuning

      Aces EFI’s Royal Flush™ EFI/CDI is the most powerful TBI system on the market! Integrating our EFI control module and CDI ignition system inside one ECU, this is a revolutionary upgrade and huge leap forward in the world of aftermarket EFI products. By using CDI, you are able to create a much hotter spark in order to burn fuel more efficiently and ensure maximum power, especially in boosted and performance applications.

      The Royal Flush EFI/CDI system utilizes four 100 lb./hr. fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, wideband O2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

      The system fits any 4150-flange 4-barrel intake manifold and is designed for easy installation and tuning. Installation is straightforward and easy, and the system includes everything you need to get on the road or track quickly. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

      Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

      Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot™ EFI kit has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!
        Royal Flush EFI/CDI w/Fuel Delivery System

        Royal Flush EFI/CDI w/Fuel Delivery System

        Aces EFI’s Royal Flush™ EFI/CDI is the most powerful TBI system on the market! Integrating our EFI control module and CDI ignition system inside one ECU, this is a revolutionary upgrade and huge leap forward in the world of aftermarket EFI products. By using CDI, you are able to create a much hotter spark in order to burn fuel more efficiently and ensure maximum power, especially in boosted and performance applications.

        The Royal Flush EFI/CDI system utilizes four 100 lb./hr. fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, wideband O2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

        The system fits any 4150-flange 4-barrel intake manifold and is designed for easy installation and tuning. Installation is straightforward and easy, and the system includes everything you need to get on the road or track quickly. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

        Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

        Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot™ EFI kit has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!