Ive got a 240 sundancer 5.7, alpha one , wondering what prop your running .
Ive done several prop selector sites and come up with 15.25x 19 , 14.5x17,14.25x21 right now I have a 4 blade 15 x16 that came with boat , wot 5000, rpm. 30 mph no speed difference from 3500 rpm to 5000 rpm ?