new prop
Mike, just a suggestion, go to westbynorth.com - norm ross is a great help, this website gives good info on prop types, Norm will size the prop and answer any questions.
I have the same engine, the trany type is important,as is hull shape,weight,etc. for sizing. I just installed a campbell 3 blade 15 x 9 prop
and very satisfied previous was a 2 blade 16 x 15
joe