Killshot™ 4-bbl TBI System

$1,199.99$863.99 28% off MSRP
SKU: AS2012B

Marvelous March Promo! This kit will come with a free:

  • Pressure Sensor Kit
  • Adjustable AN Wrench
  • Air Filter and Housing Kit
  • 7" Pro Dash Upgrade (only Quick Draw TCM Kits)

Valid 03/01/24 - 03/31/24

Note: Promotional items may ship at a later date due to the large volume of orders we process.

Throttle Body Finish: Killshot™ (Black)

Killshot™ (Black)
Killshot™ (Black)
Killshot™ (Polished)
Killshot™ (Gold)

Handheld/Dash: 5" Handheld

5" Handheld
5" Handheld
7" Dash

Trans Control: No Trans Control

No Trans Control
No Trans Control
GM 4L60/4L80

Aces EFI’s Killshot EZ Tune EFI system is one of the most powerful 4-bbl TBI systems on the market! It supports up to 650 hp (n/a) with four 100 lb/hr Injectors and is designed for 4150 style flange manifolds.
Features
- Remote-mounted ECU to avoid dreaded heat-and-vibration
- Integrated timing control & coil driver
- Boost Compatible with 3-bar TMAP sensor
- 5 inch high res, full color touchscreen with built-in GPS speedometer and tachometer
- Simple calibration wizard for initial setup - No laptop required.
- Self-learning ECU means you don't have to be a computer/tuning wiz to have EFI.
- Laptop tuning also available for pro installation
- 2 stage FAN control
- Available in base and master kits in black and polished finished (throttle body)

Learn More →

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Aces EFI Killshot™ TBI System

Aces EFI’s Killshot™ EZ Tune 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. Check out our Killshot master and top end and kits here!

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.

Killshot Master Kits

Killshot Top End Kits

Killshot Fuel Kits

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

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Product Features

Check Out Those Horses!

The Killshot™ utilizes four 100 lb./hr. fuel injectors, giving the system the capability of supporting up to 650 horsepower!

32 Bit ECU

- Remote-mounted 32bit ECU,
- Integrated timing control & coil driver,
- Selectable HEI Pickup and Hall Effact distributor and Coil-,
- Self Learn,
- Pro laptop software

Plug-and-Play!

Handheld tuner with GPS speedometer for Initial Setup, Tuning, and Gauge Displays.
Our systems are true self-learning and true Plug-and-Play systems!

Everything You Need!

The Killshot will come with everything that you need to run EFI minus a distributor and coil!

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!

Specifications

PROJECT NAME
TECHNICAL PARAMETERS
Flange Style
4150
HP Rating
650 N/A
CFM Rating
1,000
Boost Compatible
Yes
MAP Sensor Rating
3 Bar
Injector Size
100 lb/hr
Inlet/Outlet Size
-6 AN
Ported Vacuum
Yes
Fuel PSI Required
Minimum 42 PSI
Height
3-5/16"

What's In The Box?

4-bbl Throttle Body

1

ECU

1

Main Wiring Harness

1

5" GPS Digital Handheld Device

1

Bosch O2 Sensor

1

Sub-harnesses

1

Mounting Hardware

1

Which is the Best For You?

Hardware
Killshot EZ Tune EFI
Royal Flush EFI/CDI
Full House EFI TBI 650
Decues Wild 2-BBL EZ TUNE EFI
Horsepower
650
650
650
350
Injectors
4 Injectors,
100lb/hr
4 Injectors,
100lb/hr
4 Injectors,
100lb/hr
2 Injectors,
100lb/hr
CFM
800 @ 1.5" HG
800 @ 1.5" HG
800 @ 1.5" HG
400 @ 1.5" HG
Barrel
4
4
4
2
Timing Control
Yes,
Single Coil
Yes,
Single Coil
Yes,
8 Performance Coils
Yes,
Single Coil
CFM
Yes,
3Bar TMAP
Yes,
3Bar TMAP
Yes,
3Bar TMAP
Yes,
3Bar TMAP
Self Learning
Yes
Yes
Yes
Yes
Integrated CDI
No
Yes,
150mj/220mj
Yes, 200mj,
Max 750mj 8 channel output
No
Magnetic Pickup Distributor
Yes
Yes
No
Yes
HEI Distributor/ Coil-
Yes
No
No
Yes
Hall Effect Distributor
Yes
Yes
Cam Sync Plug Distributor 7+1
Yes
"This part is legal for sale and use on Uncontrolled  (Non-Emissions Controlled)  Vehicles.

The following vehicles are considered Uncontrolled  (Non-Emissions Controlled)  Vehicles:
1965 and older U.S. manufactured California Certified vehicles
1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign  manufactured vehicle
WARNING: It is against the law to install this part on an Emissions  Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

1966 and newer U.S.  manufactured California Certified vehicles
1968 and newer U.S.  manufactured Federally Certified vehicles
1968 and newer Foreign  manufactured vehicle"