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  1. R

    Scale in risers and exhaust manifolds

    Does anyone have any effective tricks to clean scale from exhaust manifolds? Thank you!
  2. R

    175 OMC bent valve

    Just bought this boat.... The previous owner was oblivious so, as far as any history I am going in blind.... The engine is a 1976 ford 302 OMC 175. Engine would fire once in a while but not run, Ignition system and timing were correct and ready to run.... I pulled both valve covers. Both have...
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