Originally Posted by
canyouheminow
a bone stock straight off the showroom floor GTO runs in between a 13.5-13.9 pending how good of a driver you are and how well it launches. One with simple bolt-on's i.e. Cai & exhaust you can expect to run between 13.3-13.8 again pending driver and launches
Thats for the slow ls1 powered ones. Look at the times I posted. There is a stock class where people are hitting 12.8's and 12.9's ls2 powered. There is super stock class also.