Killshot 4-bbl EFI Ultra Kit (Gold)

Exclusive Christmas Deals!
What is a Killshot TBI Ultra Kit?
A Killshot TBI Ultra Kit is a Killshot TBI Master Kit that also includes a Pressure Sensor Kit, 12'' Air Filter, an Adjustable AN Wrench, a Free Upgrade to 7'' Handheld and a set of High Roller CDI classic as free gift.
SKU: U-AS2012G-MK1-D
Sale price$1,337.09 Regular price$2,541.32
Includes the following free items!
Bundle Options:
Fuel System Type:
Distributor Type:
Technical support
What's in the box?

Fuel Delivery System (Choose from 6 options)

Magnetic Distributor

Pressure Sensor Kit

12” Air Filter

Ignition Coil

4-bbl Throttle Body

Killshot ECU

5” Handheld with GPS Speedometer

Main Harness

USB-CAN Cable

4.9 WBO2 Sensor

Coolant Temp Sens or

Adjustable AN Wrench(Color & style may vary)

Additio nal Hardware

If the Shoe (throttle body) Fits..

The Killshot system was designed with a 4150 style flange making it an exact fit for the majority of small and big block applications. If your manifold is different, you can simply use a flange adaptor to make it work. The system is generally compatible with stock ignition, but to take advantage of timing control features that the system offers, you'll want to use a magnetic pickup distributor and separate ignition coil- both of which are included in our Top End and Master Kits!

Computing Power

A robust remote-mounted ECU that utilizes our OEM standard 32-bit architecture. This allows the system to manage input/output signals, voltage, and RPM faster and more consistently than our competitors. A remote-mounted ECU allows it to avoid dreaded heat-and-vibration induced hardware failures that are prevelant in other aftermarket systems.

Plug 'n' Play

Not a tuning wiz? You don't need to be since we provide a wizard for you. Our self-learning* functionality means you only have to answer a few basic questions in the startup wizard and then the ECU takes care of the rest. After about 30-60 mins of idling and drive time, the system will build it's own tune so you don't have to. Click here to learn more about our handhelds and dashes and see all of their features.

*Self-learn works best for stock-mild applications. For more aggressive applications and even some stock-mild applications, we offer free tuning software on our website.

Boost it, baby!

Each TBI unit comes with a built in 3 bar MAP sensor that will allow you to run up to 27lbs of boost!

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

Powerful ignition

The Blackjack Pro Series Billet Distributor features a high-quality, CNC-machined black anodized aluminum body and hardened steel shaft, guided by a sealed ball-bearing on top and a sintered steel bushing on the bottom to ensure stability up to 10,000 RPM. The distributor can be locked out and features solid brass terminals and a color-matched wire retainer.

BLACKJACK Pro Ignition Coil

- Primary Resistance:0.273Ω
- Primary Inductance:2.63 MHz
- Secondary Resistance: 3.42kΩ
- Secondary Inductance:15.77 Hz
- Output (50pF load): 47 kV
- Output Energy:150 mJ
- Peak Secondary Current:100 mA +/-7%
- Arc Duration: 200 uS
- Turns Ratio 78:1

PRODUCT TECHNOLOGIES

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
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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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.