I have a 24'0 Seasprt,5500 lbs, powered with a 740 engine with a Volvo Penta duo prop and a 1.95:1 ratio. The boat came with a rear B-5 and a front B-4 prop set-up. Upon testing with a light load WOT was 4450 RPM. I need help in determining weather I should buy a B-4 or B-5 duo-prop set. Regards
