I want to by sst prop instead of aluminium black max 14.25X21. Curent result with aluminium prop. 5500 rpm .gps speed 50.3 mph. At the same time standart sheedo shows 55-56mph
My boat 18.5 deepV 98"beam. 1470lbs hull weight.I want to change the prop to have a maximum top speed by gps and a...
