I'd like the opinion of the experts on this board about my motor setup in the picture below and what style of prop I should be running with this. The boat is a 1978 Cheetah 15.5' fish&ski with a 78 Johnson 115. I'm trying to sell this so I really shouldn't care, but I want to help the next owner get the right setup.<br /><br />I've been fighting ventilation problems since I got the boat 5 years ago because the motor sits so high in relation to the bottom of the boat. The 4 blade 19P comprop I'm running keeps the ventilation to a minimum but it's still excessive. I have 2 different 3 blade SS props (19P & 21P) that I've tried and they're both worse. I've also run it with the fin off the motor and it's much worse. My research here suggests that I should be running a raker style, is that correct? Thanks.<br /><br />