Holley Terminator EFI 4BBL Throttle Body Fuel Injection Master Kit

SKU: 550-40XK Categories: ,


Terminator EFI 4bbl Throttle Body Fuel Injection Master Kit V8 4 bbl 950 cfm, Range 250 to 600 HP


Holley is proud to announce the release of their Terminator 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!


  • Fits V8 engines from 250-600 horsepower
  • 4150 style 4BBL mounting flange – bolts on in place of carburetor
  • Available in Polished and Hard Core Gray finishes
  • 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

Select Finish Option from Drop-Down Menu Above.

Additional information

Finish Options

Tumble Polished, Hard Core Gray


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