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Open the Manifold for Holley

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  • Open the Manifold for Holley

    With the wheeling season coming on hard I'm weary of boring my manifold for the Holley Projection. Pulling the manifold is going to lead to other issues that need attention I'm sure.

    I've already got the adapter drilled and fitted. I have a spare Manifold that I can work on after I've installed the system on the current manifold. All I want for this season is the thing to idle including at all angles, not hesitate too bad off idle, and go down the road.

    Is anyone currently running a TBI without opening up the stock 2-bbl manifold? How is the performance.

    Thanks Joe

  • #2
    Ran both of mine without boring the 2 barrel manifold. Just angled the hole on the adapter to try to smooth the change down a little.

    How about stuffing the manifold with rags and hooking up the shop vac to suck as you grind or use a hole saw? Not ideal but I bet it would work.
    Bill USN-1

    COMMITED TO TEACHING PEOPLE THE "PROPER" WAY TO EFI
    HAMILTON FUEL INJECTION
    May be the answer to all your fuel injection needs!
    Learn to do it right.

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