I bought a 24' Mariah without drive/power. Single engine at this time...

I'll be running ~450hp with a TH400 set up as a two speed--- and am making an extension box to convert from bravo to TRS and to able to run the prop a bit shallower--- TRS is tall! 1.46 trans ratio 1.50 drive ratio --- I hope that with a ~65mph prop on it, that I can pull tube/wakeboard or putt around 2nd gear without lugging the motor, and can air it out in 1:1 without needing to change props as I have in the past with boats that don't have two gears. Extension box I think will be in the 7" range but I can build it back there even further if needed.

What height should I set the prop at? I think it would be safe if I don't find better information to put it ~2" above (shallower) where the bravo had it---- and if I get into more power and need a konrad later, could lift it a bit further at that time with the shorter konrad.

All feedback appreciated!!! Thank you.