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Thread: Holley Red pressure adjustment.

  1. 05-07-2022, 10:09 PM #1
    Hartmanba
    Hartmanba is offline Junior Member
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    Default Holley Red pressure adjustment.

    Is it possible to adjust the pressure of the Holley Red pump within the pump itself?
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  2. 05-08-2022, 05:38 PM #2
    Hartmanba
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    UPDATE: I took pump apart to clean and check. I see there are four brass washers on the regulator screw. If I remove those will it reduce the pumps pressure?
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  3. 05-17-2022, 09:40 PM #3
    Hartmanba
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    Does anyone have experience with this?
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