MOPED ARMY

They run at low rpm's and the crank bearings are bushings, but you can see in parts lists from boats.net if your engine block was made in higher hp ratings and modify to match the higher rating. Sometimes its only a jet size or blocker plate. The best improvement would be to check that you get full max claimed rpm at full throttle on average conditions for your setup and if the rpm is off, adjust the prop pitch to dial it in.