John Patterson
New Member
- Joined
- Jan 27, 2013
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need help I have a 2013 optimax 75 hp but it running at 45000 rpm and at full throttle I run it at 6000 to 8000 feet elevation I have a 13 1/4 x 19 pitch prop and boat runs about 32 mph the boat is a 175 txw and it takes a long time to plan out any thoughts thanks