Howdy,<br />I have a 1998 30hp 2-stroke (3-cyl) engine on my 13' whaler and would like it to have some more top end speed. It has the stock 9 7/8 X 13-f prop.<br /><br />Would a prop change help / work? If so what size would you suggest? Are 4-blade props more efficient?<br /><br />Another...
