I have a 95gt with stock bottom end 70,000 and tw205heads, fcam, and trackheat intake. 70mm on3 turbo with upgraded parts. 20lbs boost. Runs very strong. However, after joy riding the other day it is smoking from valve cover and dipstick. I figured it must have blown headgasket, chunked a piston, or pinched ring. So i pulled it out and have taken it apart. there appears to be nothing out of the ordinary. Could it have lifted the heads and they just didn't reseal? I run MLS gaskets and ARP head studs. It was still running the strong before i pulled motor. No missing or smoking from exhaust.