If I can spin a 32 labbed bravo1 prop to 5300 rpms how fast approx. should I go? My outdrive is about 2 inches below rub rail.Thanks. It is a 2000 eliminator daytona single step.25 foot long.

http://www.go-fast.com/Prop_Slip_Calculator.htm

I would figure in 16% slip

With a cat, you'll be below 16%. 10% would be a realistic goal.

What gear ratio are you running?

Sorry I did not mention that. It is 1. 50

93 - 96