1973 65 hp max rpm 4400

Like to fish

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Jul 23, 2011
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Running a 17 pitch prop on a 1974 tri hull. I know these old tri hulls are heavy, but my question is will having 4400 rms at wot hurt this motor? Also if 4400 rpms is max then how can I set and sync the carbs if I need 26-28max timing at 5000 rpms. Should I switch to a 15 pitch and if I do change to a 15 pitch prop do you think that. Would increase or decrease the top end speed. This is my first powered boat.
 
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