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  1. P

    5.7 Cobra runs great on muffs, Not on the water.

    I wanted to freshen the motor up. Heres what I have done. New camshaft, new Edelbrock carb, new edelbrock intake, new Mallory distributor, new Mallory coil, Made the Mercrusier style shift assist. The only thing not marine is the camshaft and it is a very mild street cam. This thing runs like a...
  2. P

    1988 5.7 wont rev under load

    Help!! Just put a rebuilt engine in my 21 foot Four Winns. Runs fine on the muffs. Dip her in the lake and will not rev past 2500 rpm. I have replaced the distributor with a Mallory breakerless. Set timing. Pumped all old gas out of tank. New fuel fliters. Have done the Merc shift conversion. I...
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