I have a 1997 Javelin 389 SE w/ a 175 Evinrude Intruder and a 6-in jackplate. I also have hydraulic steering on this boat. I am running a 24p 3-blade prop and the motor keeps blowing out or cavitating when I go to take off. I make sure the motor is trimmed all the way down when i take off and it still does it. I have ran a 23p 4 blade and a 25p 4 blade prop, and they all do the same thing. The boat seems to do it more with full livewells and i have to feather it to get it out of the hole. I have no problem with top-end speed or handling once on the pad, its just the problem of getting it on the pad. Do you guys think its a jackplate problem or do I need the prop worked. I don't exactly know how far below pad I am running, but I know that the motor is failry high on the plate. If its a JP problem how far do i need to drop the motor on the JP.. How far below pad are you guys running your boat with a similar setup.