Driving a 2000fisher 18 1/2 deep v repowered with a 2002 merc 115 4 stroke, it has a Michigan aluminum 3 blade 13.75 X 15 pitch prop. Current prop has been filed a bit but looks in good shape.
I don't totally trust the tach because it varies as I drive. GPSS WOT peed is 29-31 MPH, gets up on...