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Thread: Two fours

  1. #1

    Two fours

    If you are running two fours with vaccum secoundaires is there any benifit to had linking the two vaccum chambers together?

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Jan 2007
    Batesville Ms.

    2 4's

    I ran 2 vac sec 600 holley's on a 350 bracket mtr and mine were tied together and I would say that is a must do . Also was not happy till I removed the power valves. Later J.Smith 4621 racing

  3. #3
    besides pairing the vac. together, did you use progressive linkage or have them operating together ? some tell me that the progressive linkage will lean out the rear cyl's. what's is everyone's thought.

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