i'am going to feed a small block chevy with aluminum heads, solid roller cam, 4 to 5 lbs of boost with fuel. how do i know if a -8 fittings for the fuel system will work. I bought a barry grant fuel pump (preset at 7.5 to 8 psi) and am probably going to buy the barry grant inline fuel filter both have -8 fittings in them. Will these be big enough, i have never plumbed anything with AN fittings before any help would be appreciated!