Best prop for Pro Open 650

[diaster]

Prop ideas anyone. Currently running 14.5 x17 Michigan match gets me 38 knots at 5300 rpm. Engine came with 13 3/4 x 19 Yamaha reliance. Seems it won’t get as much rpm.. not sure, diameter vs pitch. I would think the 17 pitch would get me higher RPMs. Anyone know the max rpm of the F150 and what speed I should be able to get with this ship but still have a decent hole shot? Any advice would be great!