notfiring

  1. Y

    New guy here...77 c20 292 NEED HELP

    Hi guys I just joined I have a 77 C20 with a 292 and sm465 I have been having a problem with cylinders 1 and 2 not firing/misfiring/missing badly... Both cylinders have about 140 compression, I have spark, and it doesnt appear to have an intake/exhaust gasket leak or crack on the runner...

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