Hey guys, I have a 18 bahner with a pretty much stock 454, oval heads, stock bottom end, berk 12jc pump, as far as i know the pump is stock, What impeller would that be? The boat will run about 65 tops at about 4500 rpm's . Im planning on a single carb tunnel ram, Mainly cause i like the look, I was thinking about a cam and maybe some solid lifters to gain a few more mph and rpm's ? Would that be a mistake or would it help with the pump i have, or what kinda ideas do you guys have for just a little more speed on a budget. It has threw hull exhaust with snails. Do i still haft to worry about what cam i get?