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  1. K

    Blown Head Gasket???

    My 87 GN has 22K miles, ta49, 009, TH D/P, hotwire...etc Last weekend I had it out for a cruise and got on it a bit. 20 lbs of boost with a mix of 110 and 93. FP at 48 PSI. Heard a few popping sounds..then limped it home and smoke emitting from under the hood. Pulled the valve covers and am...
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