Re: prop size
The one that will allow your engine to attain its max wide open throttle rpms with an average load aboard.I'm guessing that a 15X17 would be a good place to start.Only a water test can confirm final prop selection.Insure that the engine height set-up is optimal.This will reduce drag and exhaust back pressure.Lower unit anti-ventilation plate at or just above the "mean" bottom of hull surface.
