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  1. Is this normal?

    Drivetrain & Performance
    I just noticed that the centrifugal advance on my distributor goes from about 15 degrees up to 36 but then seemed to drop off about 1 to 2 degrees. Does anyone know if it is supposed to do that?
  2. Re-Curve an HEI distributor

    Drivetrain & Performance
    I have an HEI (Summit) distributor that needs help. The distributor is connected to a Summit multi-spark/rev limiter box. It seems to be able to muster about 18 degrees of mechanical advance and way too much vacuum advance. It seems to be "all in" by about 3400 rpm. I'd like to see it all in...
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