I have a 1988 19.5' bayliner trophy c/c with a 1989 force 125. when running at WOT i am @ 3800 - 3900 rpm.. i am turning a 13x19 stainless. the engine seems to be running well at idle(no missfires) and when reving it without load, it will max out the tach @ 6000 rpm.. i have tried a 13.5x17 and...
