i have a 19ft stelth bass boat with a efi 150 hp 4 blade 23 pitch prob this motor has a hole in the foot for the speedometer and i haft to adjust this so hi it dont work i have a jackplate and a whaletail when i set it to where the speedometer works it will get up to 55 mph and start china walking bad you can adjust the motor up to where its not as bad bad the oemter dont work and turn hard it will spin the prop do i have a prob how do you set the motor some one told me level the boat the take the level from the pad to whaletail im lost thats for sure dont want to get killed so hope someone helps me