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Thread: Anti-diesel solenoid idle RPM.

  1. #1

    Default Anti-diesel solenoid idle RPM.

    Hi. I have a relatively new Holley carburetor with a Holley anti diesel solenoid installed on a 427 Chevy big block, it currently it idles at 550 RPM. I want to increase this to 650 RPM, the car has been previously tuned and the mixtures set. Do I just adjust the idle speed screw only? Thanks.

  2. #2
    Join Date
    Jan 2010
    Brisbane, Australia


    You would adjust the idle stop solenoid, it controls hot idle speed. The throttle body idle speed screw would be idle with the solenoid de-energized.
    Regards, Gary

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