Originally Posted by
mogs01gt
I find that really surprising. We all know the 01+ LS1's put down awesome numbers stock but his mods should have equaled those power numbers. Its something I have always noticed at the track or closed streets*cough*. The pre 01+Ls1's really do not have that top end pull like the later models. I've raced a lot of ls1s, hell a few good friends have them! I've had my ass handed to me by the 01+ but never really ran into those pre-01's that people say run similar times.
I for one never understood why GM made soo many changes to the ls1 during those 5 years of production.