on my 22' sunrunner, i have a 290 out drive behind a stout small block, pushing 430+ hp. wondering what the limit is as to hp for this outdrive? i dont hammer it out of the hole, i dont shift at high rmps, ect ect. i have some aluminum prop on there now, it works for skiing and cruising, but id like to get something for some speed. i know nothing about props or gear ratios for out drives so this is all new to me.