Yeah, give us the outdrive gear ratio if you know it. It should be stamped on the port side of the housing. Need the prop your running with pitch and diameter too. The prop info is more important. Also, were you running lightly loaded or loaded down? Not sure if the WOT rpm range is the same as for the 350 Mag MPI, but if it is, you want to be between 4800 and 5200. 5200 light and no less than 4800 loaded.
Dave
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Blue Heron Boat Works
Reinventing the wheel, one spoke at a time.
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