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Thread: Blower carb ????????????

  1. #1
    Junior Member SHOW GUEST
    Join Date
    Mar 2007

    Blower carb ????????????

    I know that Holley sells a carburetor, made for blower motors. What is the difference between a blower carb. and a standard carb? How would a motor run with a blower and a standard carb?


  2. #2
    Join Date
    Nov 2004
    Home of Bill and Ted
    Usually two items will make a blower carb:
    1) 1:1 linkage between the primaries and secondaries,
    2) the metering block is modified in such a way that the power valve requires that a vacuum line be hooked up from a source below the blower (intake manifold). Normally a carb gets it's vacuum souce from the base plate, but because a carb on a blower is under constant vacuum the power valve would never open. With an external source the power valve is "pushed" open under boost.
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