Ok, so I know some of you have tried nearly every combo under the sun, so I come for advice.
I have 1990 VE 12v, 5spd. It has head studs, 60# springs, 4kgsp, moded fuel pin, and turned up to just before run away. Timed to the head. Stock sticks.
It currently has an HX35 12cm, and with the...