I have just purchased a 1991 cheetah 2000lsc 20 foot cuddy. 4.3 2bbl alpha 1 gen 2 . My current prop is a 1916p19. With 2 adults and 2 teen boys we ran 4370rpm wot at 36 mph. The boat planes quickly and pulls a tube well but will porpise if I try to trim anymore. It also has one of the hydrofoil...
