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I have a mercruiser I-6 with a 165 omc outboard. Done a lot of work including new engine, plug, verified firing order and timing. Starts and Idles great. When you open the throttle the boat starts to plane out and seem to be about up to half speed and then cycles a little and then just...
I have a 1975 Drummond with a GM250 I6, OMC 165 MC outdrive. The engine block is cracked. Can anyone tell me if there is a difference between the Marine GM 250 block and those used in cars/trucks? Thinking it will be cheaper to find one at a junk yard. Thought I read in a different forum that...
