318 combo help

That's a wicked little teen you got. It's gonna need some serious hardware to go along with it. 3500 converter, or 4 speed. 4.10-4.30 gears. You sure on that compression? That's a domed piston.

I see where you say it's a 4 speed. But IMO, 3.55 or 3.73 ain't enough.