How to drive a cat ?
3 hail Marry's and throttle forward !!!
I'm no expert but all cats are a bit different . Your's has a center pod right ? With that power ,it sounds like you don't have enough prop unless you have a higher ratio in the drive . Your twin disc model 502 trans are a 1.5 to 1 ratio and you drives have a ratio also . You should use long hub props not short ones .(more bite) . You may benefit from 4 blades too . surface drives on cats don't need much trim if any . My arnesons are fixed mounted and work fine . ON my old 40' formula ,the Kaamas only needed a tiny adjustment to get that big battle wagon on plane . I had 17 1/2x 24 3 blades short hubs . needed bigger props . Surface drives run their fastest when they are perfectly level with the bottom (unless the boat has a problem ) . I'm sure you will get much more input from the board . This is just a little taste ! Good luck with it . And WELCOME TO THE CAT HOUSE !