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Those are the spec's given to me from JIMMBO on the Iboats forum.1974 70hp
49.7 cubic inches
70hp @5000rpm
WOT rpm range 4500 - 5500
Lower unit gear 12:29
Hydro assisted shift with positive mechanical follow thru.
Okay, SO had the boat out lastnight with the new 15 pitch prop. Whole shot was super quick, motor was much more responsive.... however RPM's would shoot up to 5450RPM's if allowed to be left @ WOT. Going to take the 15 Pitch back & get the guys at the local prop shop to look over my 17 (maybe repair it) Still gota set the timing though