I am looking for some advice for an intake, cam, and carb for a 1995 baja 240 mercruiser 454. My boat tops out around 60mph and I want to do some upgrades to get that speed up. Exhaust has already been upgraded. I was told I had peanut port heads and may not have a roller cam. Can someone help me on what type of cam I have and how to make some power out of this motor. I normally spin 55-60 mph at about 4800 rpm. Thanks in advance.