Making power out of the 318

Tune 4bbl duals small cam gears stall and shift kit, nice basic setup that can do one step at a time. Then the displacement, velocity, cr police come in and confuse the F out of the OP.
4 barrel, duals and a distributor recurve first. Depending on how power hungry you are, that may be all you need. The next step: Depending how radical the cam you install, you will benefit/need a convertor and rear gears. Headers may be on that list as well. Now may be the time to up your compression with pistons or some closed chambered heads. Down the rat hole we go. (like with all builds when you are chasing power)