Trying to sell MY 1971 Crestiline with the above engine. When I start up the motor within 4 or 5 minutes it builds to a top RPM roar that can't be stopped unless I disconnect the gas line to the engine. I am clueless as to what is causing this other than the fact that my last mechanic...
I am trying to sell my boat (1971 Crestliner) with the above Engine. When I start the engine it idles but eventually revs to a full wide open roar within 3 or 4 minutes. The only way I can shut it down at this point is to disconnect the gas line into the engine- turning the key off and...
