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    EFI - Holley  EFI Stealth Avenger  Ram System SBC

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      Purchase EFI - Holley EFI Stealth Avenger Ram System SBC

      SKU: HLY-550-822
      EFI - Holley EFI Stealth Avenger Ram System SBC



      You’re sure to get some attention when you pop the hood and show an Avenger Stealth Ram™ Multi-Port EFI system! Available for traditional or Vortec headed SB Chevys, the Avenger’s self-tuning capabilities make it as easy as 1, 2, 3 to get your car up and running with EFI. The tunnel ram design of the Stealth Ram™ builds power in the upper RPM range while maintaining excellent mid-range torque as well. Avenger Stealth Ram™ systems include: intake manifold, billet throttle body, ECU, wiring harness, fuel rails, injectors, fuel pump and related small parts. Set up is done on the included hand-held tuner so no laptop is required!


      • Self-tuning fueling strategy tunes while you drive - Designed for the user that wants the ease of use without having to be a “tuning expert”
      • Requires no laptop computer to set up or tune - Includes full color OLED hand-held tuner that offers simple setup and easy tuning of basic parameters such as engine idle speed. Still allows for users to change other parameters to further fine tune base
      • Dedicated fuel and oil pressure inputs
      • Allows for computer controlled ignition timing if desired
      • System can be upgraded in the future to a Holley “HP EFI System” if desired

      All Avenger EFI systems come with all installation components including wiring harness, sensors and in-line pump.

      Return fuel line to tank is not included.

      ECU is certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance.

      These kits require the use of a small diameter distributor, such as a small cap GM HEI or most MSD distributors. A large cap GM HEI will not fit with these kits.