I have a 1971 Cal 29 with an atomic 4 gas engine. I may have a back pressure problem which is keeping the engine limited to about 1200 rpm under load. In neutral I do not have any problem with getting the maximum of 3000 rpm out of it.
What would be your recommendation for replacement of the exhaust system from manifold to transom?
Thanks,
Mel Root
What would be your recommendation for replacement of the exhaust system from manifold to transom?
Thanks,
Mel Root
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