I have a 2008 22' bentley pontoon I just received from in-laws. It has a 2008 60hp merc bigfoot efi 4stroke on it. I just put on a 14x13 prop and when i took it out on water, rpm guage is reading 3500 rpm at wot. Manual states it should be at 5500-6000 rpm wot. Boat initially had a 14x10...
