Fuel piping question

Personally I think the entire THING is overkill. NO6 supply up front is actually plenty. But you are not running a return? Big mistake in my book. I BELIEVE in return systems. They help relieve fuel boiling / vaporlock problems, for one.

Plus no10 is so much larger than 3/8 pipe I'm not sure you are really gaining anything there. I'd think no8 suction is plenty.

"Just how much" HP do you figure this will make?