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  1. P

    HELP cylinder 4 and 6 misfire

    When mine did that, I had a cracked head. Checked both of them, one was real bad the other starting to get bad. Replaced both heads with aftermarket ones. If that is the problem, check for the port sizes you want. Intake and exhaust. Boise block and head did my head work, Buss automotive did the...
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