How do 318 powered A-Bodies do in NHRA PURE Stock?

i have a close friend that runs stock eliminator in a pontiac firebird. everything you know about engines can be thrown out the window. his cam shaft MEASURES in at stock lift but he is getting nearly twice that at the valve............ when i saw the cam shaft the first time i thought he was pulling my leg. there are aloooooot of little secrets. alot of E.T. is shaved of with light weight rotating assembly's in trans and rear diff. his pontiac weights 3600lbs and 60fts in the the 1.4's and is doing over a hundred by the 1/8 mile but crosses the 1/4 at only 112 mph. the car runs 11.20-11.40 @ 112-114mph. it is all done by the 1/8 mile.