I is at about 9000 rpm with a 16x 8 prop. The tank is about 2 inches away from the engine and about 2 inches lower. I'm kinda thinking that a fuel pump would work the way you guys say it. Should i go with a perry pump and how does it pressurize the fuel (do you plug it into a battery?) How much would a pump help? What would one cost? Would you still use back pressure from the muffler?

I have a saito 72 engine and it runs perfect, so i don't think tuning is my complete problem.

The help is really appreciated!!