I recently purchased a 1988 Bayliner Capri 1750 with the OMC Cobra 2.3 liter engine. With two people, a 70lb GSP and a full tank of gas I was able to get up to 6000 rpm and 33mpg using a 14x17 aluminum prop. The recommened WOT rpm for this engine is 5200-5600. I was debating trying a SS prop...