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    1. 11-12-2025 #1
      andrewb70's Avatar
      andrewb70
      andrewb70 is offline -Moderator/Sponsor-
      Join Date
      Apr 2001
      Location
      The City of Fountains
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      16,125
      Country Flag: United States
      Quote Originally Posted by csouth View Post
      I don't think the Holley will do a direct integration, you will likely need the standalone version and have to tap into the connect and cruise harness for data. User Andrewb70 could tell you for sure. He does work for Holley.
      I do not work for Holley, but I do have my own Holley EFI tuning business.

      To answer the original question, the Holley dash is not compatible with the GM ECUs over CAN bus.

      Andrew

      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @dr__efi
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her
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