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Thread: valve covers w/holes

  1. #1
    Senior Member RACING JUNKIE
    Join Date
    Feb 2004
    san antonio, texas

    valve covers w/holes

    im going to run a vacum and was wondering if it's ok to get valve
    covers w/holes or should they be no holes for sealed vacum?
    thanx for any help

  2. #2

    No Holes

    You want to seal the engine as best as you can. No holes or air leaks if possible. A well sealed engine with a vacuum pump will give you a little more power.

  3. Racing Junk

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