Holley Electronic Fuel Injection Conversion Kit Terminator Stealth Self-Tuning Master Throttle Body With Classic Gold Finish



  • Self-Tuning ECU
  • Plug-And-Play Harnesses
  • Supports High Horsepower
  • Touchscreen Tuner
MSRP $3,033.00
You save 10%

Holley Self-Tuning Master Throttle Body Terminator Stealth Electronic Fuel Injection Conversion Kit with a Classic Gold Finish and Complete Fuel System.

If you want to improve the fuel delivery and ignition timing of your engine without removing the classic carburetor look, look no further than the Holley Self-Tuning Master Throttle Body Terminator Stealth Electronic Fuel Injection Conversion Kit 550-444K. Make the choice to switch over to EFI with a kit that includes a complete fuel system for a drastically improved air/fuel ratio and more power on the road.

Features and Benefits:
- Drivability of EFI with classic carburetor look
- Optimized performance
- Self-tunes while you drive
- Fits V8 Engines from 250-600 horsepower
- Mounts to a 4150 Intake Manifold Flange
- Bolt-on upgrade of 4150 Style Carburetor
- Fully self-tuning ECU (no laptop required)
- 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
- Simple plug and play harnesses with minimal connections
- Classic gold finish
- Made in the USA

Convert your engine to premium EFI to enhance the performance of your carbureted intake manifold. CJ Pony Parts is offering this Master Throttle Body EFI Kit 550-444K by Holley with all the necessary components to make the installation hassle-free. This conversion has all of the benefits of EFI and maintains the traditional looks of a carburetor. The Holley Terminator EFI Kit 550-444K contains a self-tune unit that will adjust to your driving style and will support V8 engines that produce 250-600 horsepower. Don't let the carburetor hold you back from a powerful start to your drive.

Kit Includes:
- Terminator EFI Throttle Body (Supports 250-600 Horsepower)
- Terminator ECU
- Full Color, 3.5” Touch Screen Handheld Tuner (for basic and advanced tuning options)
- Complete Wiring Harness
- Fuel Pump
- Fuel Filters
- 40ft of Fuel Hose (Feed and Return)
- Billet Regulator
- All necessary Fittings (From Fuel Tank to Bulkhead Fittings)
- Detailed Instructions
- All Necessary Mounting Hardware

- CFM: 950
- Finish: Classic Gold
- Flange Size: 4150
- Fuel Pressure: 43 PSI
- Height of Throttle Body: 3-1/4”
- Injector Size: 80lb/hr at 43psi
- Throttle Bore: 1.750"

California Residents: Proposition 65 Warning

Installation Difficulty


Advanced skill is required for this installation.

Vehicle Fitment

This product will fit the following Bronco years:

This product will fit the following C10 years:

This product will fit the following F-100 years:

  • 1957,
  • 1958,
  • 1959,
  • 1960,
  • 1961,
  • 1962,
  • 1963,
  • 1964,
  • 1965,
  • 1966,
  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,
  • 1973,
  • 1974,
  • 1975,
  • 1976,
  • 1977,
  • 1978,
  • 1979,

This product will fit the following Mustang years:

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