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  1. #1
    FEP Senior Member Sask84gt's Avatar
    Join Date
    Feb 2018
    Location
    Saskatchewan, Canada
    Posts
    814

    Default Vacuum tree good source for manifold vacuum?

    Hey guys. I want to set my idle mixture screws on my Holley 600 with a vacuum gauge. I know it needs manifold vacuum so can I just hook gauge up to a unused port on my vacuum tree?
    Mustangs
    84.5 Gt T-top
    85 Gt

  2. #2
    FEP Senior Member
    Join Date
    Mar 2008
    Location
    darien il
    Posts
    523

    Default

    yes, my vacuum gauge is hooked up there.

  3. #3
    FEP Senior Member Sask84gt's Avatar
    Join Date
    Feb 2018
    Location
    Saskatchewan, Canada
    Posts
    814

    Default

    Quote Originally Posted by bob85gt View Post
    yes, my vacuum gauge is hooked up there.
    Thanks!
    Mustangs
    84.5 Gt T-top
    85 Gt

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