Carter 4bbl question on 401`s

Discussion in ''Da Nailhead' started by staged67gspwr, Oct 9, 2003.

  1. staged67gspwr

    staged67gspwr "The Black Widow"

    I noticed that the vacuum port where the distributor hose goes to on the carb only has about 5" of vacuum @ idle,and another port of the carb lets say in the rear of carb reads 19" of vacuum,is it normal for the front port where the distributor hooks up to to read that little?


    Thanks
     
    staged67gspwr, Oct 9, 2003
    #1
  2. BlownNailhead

    BlownNailhead no refunds on bad answers

    The front port is ported vacuum, and the rear is manifold vacuum.

    Ported will increase as the engine speed goes up, it is taken from the venturi area above the throttle blades.
     
    BlownNailhead, Oct 10, 2003
    #2
  3. staged67gspwr

    staged67gspwr "The Black Widow"

    Cool thanks.:TU:
     
    staged67gspwr, Oct 10, 2003
    #3

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