suggested 17 to 19 pitch. I think I have figured it out. Michigan wheel 14 x 17" cupped. cupped should give me 19" pitch for top end and the 17 acceleration. The boat is a 1983 bass attacker by sea nymph 16'6" aluminum hull semi V bow, empty 600 lbs, plus engine, some chubby butts, gear,fuel etc. best guess
, on the water probably about 1100 lbs. comments, suggestions greatly appreciated.
For info; finally figured out what prop is on it. full military zodiac prop, 12 3/4 x 23" zodiac is 15' but ONLY 350 lbs empty