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Holley Performance 550-405 Terminator EFI TBI System

5462655 - 550-405

4 bbl. - 950 cfm - 250-600 HP Range - 1.750 in. Throttle Bore - Incl. TBI Unit/ECU/Hand Held Progr. w/Wiring And Sensors - Polished

550-405 Terminator EFI TBI System Holley Performance

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Holley Performance - Terminator EFI TBI System - Part#: 550-405 Features:

  • Fully Self-Tuning Ecu - No Laptop Required
  • Trouble-Free w/Fuels An End To Vapor Lock/Fuel Varnish Problems
  • Terminator Can Be Updated To Hp Specs w/Free Software Download
  • Ecu Fully Potted/Seal For Protection From Vibration/Dust/Moisture
  • Ecu Can Be Used For Lsx/Boosted/Nitrous/Others In The Future
  • Ignition Timing Control On Small Cap Hei/Tfi Dist. Req. Adapter
  • 80 Lb/Hr. Injectors Support 250-600 Hp Engines
  • Patent Pending Discharge Fuel Ring F

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the Terminator EFI TBI System.


Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR Sprint Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Exhaust, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.

Shipping Information

  • Item Requires Shipping
  • 14.0 lbs.
  • W13.0000” x H6.5000” x L25.0000”

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