
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Holley is proud to announce the release of their TerminatorT EFI Throttle Body Injection Master Kits. These complete kits include the 4BBL Terminator EFI Throttle Body Injection System w/ 3.5" Color Touch Screen + EFI Conversion Fuel System. They are compatible with naturally aspirated V8 engines from 250-600 horsepower. With everything in a single box, these kits make it easier than ever to convert your carbureted vehicle to reliable fuel injection!
Features:
- Fits V8 engines from 250-600 horsepower
- 4150 style 4BBL mounting flange - Bolts on in place of carburetor
- Fully self-tuning ECU - No laptop required
- Includes full color, 3.5" touch screen LCD for both basic and advanced tuning options
- Complete fuel system included with pump, filters, 40 ft. of hose, billet regulator, and fittings including the return line bulkhead fitting
- Timing control option for GM Small Cap HEI and Ford TFI distributors
- Connections for Ford, GM TH350, 700R4 and other transmission linkages
- Optional free software upgrade for full laptop control
- Easy plug and play harnesses with minimal connections
- Full color instructions included with user friendly wiring and fuel system diagrams
- Industry leading tech support - FREE!
Installation Notes:
- 950 CFM
- 80 Lb/Hr @ 43 PSI Injector Size
- 1.750" Throttle Bores
- 3" Overall Height
- Fits all standard square 4150-style flange intake manifolds
- Connections for Ford, GM TH350 and 700R4, and other transmission linkages.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
There's a new self-tuning EFI on the streets and IT'S IN CONTROL!
The Holley Terminator EFI Systems have features not found in any other street EFI system including throttle body technology that is currently used in every NASCAR Sprint Cup Serie car. Installation is easy with no computer experience necessary, simply bolt it on, use the included handheld tuner to answer a few multiple choice questions and let the Terminator EFI take control, the system self-tunes as you drive. If you embrace modern technology and want to take control, the system is upgradable to complete laptop control without the need to purchase another electronic control unit. This carburetor replacement EFI system from the fuel system experts is perfect for street machines, off-road vehicles, trucks, RVs and weekend racers!
Show More
Terminator EFI Features:
- Fully self-tuning ECU - No laptop required.
- Self-tunes instantly to deliver the perfect air/fuel mixture in real time for optimized fuel economy and power.
- Virtually maintenance free - keeps your vehicle reliable and ready to drive.
- 950 CFM Throttle Body with CFD computer designed air-entry area taken from Holley's famous NASCAR throttle body - as found on all NASCAR Sprint Cup Series cars.
- Patent pending annular discharge fuel ring for maximum flow and optimum fuel atomization - No restrictions or delay in fuel flow like booster designs.
- Serviceable sensors integrated into throttle body and pre-wired for a simple one-click connection.
- Connections for Ford, GM TH350 and 700R4, and other transmission linkages.
- Fits any square (Holley 4150) flanged intake.
- 80 lb/hr injectors support 250-600 HP engines.
- Provides ignition timing control on engines with Small Cap HEI and Ford TFI distributors (requires adapter).
- ECU fully potted and sealed for protection from vibration, dust and moisture.
- Terminator ECU can be EASILY updated to Holley "HP" ECU specs with a free online software download. ECU can then be used for LSX, boosted, nitrous,and many other applications in the future as you desire!
- Trouble-free performance with today's fuels - put an end to vapor lock and fuel varnish problems!
![]() |
| Throttle Body fits any square bore 4150-style intake manifold. Click on images to enlarge. |



![2900 Atomic EFI Master Kit [525HP Max]](https://www.jegs.com/images/mini_200/100/121/121-2900.jpg)
