mercruisernorway
Recruit
- Joined
- Jul 2, 2012
- Messages
- 1
i have just bought a boat wellcaft exel 18 with a merc 3.0 last owner told me he had mounted a new top on it with bigger valves an larger gates.. i cant get more than 3300 RPMs, it planes nice and sounds nice but i am missing allot of power.. could it be the new top? manifold is original so is the carb..