I have a 1989 Forester 1800 Diva GT with A OMC Cobra 5.0. I'm Currently Running a 14 1/2 x 19 Aluminum prop and turning about 4600 RPM. I was wondering if I would gain any top speed by going to a stainless steel 14 1/2 x 19 prop. Any Thoughts or suggestions would be greatly appreciated.
