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Type: Posts; User: deepnhock

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  1. Replies
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    One of those two ports is carb vacuum ( vacuum at...

    One of those two ports is carb vacuum ( vacuum at high rpm)..
    The other is manifold vacuum ( vacuum at idle)..
    Start it up and pull off the plug. The one that sucks at idle is the one you want to...
  2. Replies
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    Views
    21,090

    Re: Tuning carb with a vacuum gauge

    Hook up your vacuum guage to the intake manifold port of the carb (sucks at idle).
    Set you rpm about where you want it to be.
    Adjust your idle mixture screws to give you the highest manifold...
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