Q
Quick231
Guest
I just installed a fresh rebuilt motor w/billet caps, 218/218 comp cam and stock unported heads. The heads only have the upgraded 100 lb springs. I plan to install GN1 alum heads in the future just wondering how far can I go right now. My combo: 50 lbs inj, V4 IC, hot wire kit, 307 fuel pump, adj fuel reg, TA52 turbo, THDP, ATR 3" exhaust, Precision 9.5 non-lockup conv (3200) stall, scanmaster, power plate, K&N filter, and car is at full weight.