well my brother just got a 98 T/A auto all stock, until we found a 3inch cutout on the car when we did a tune up oil, rear end diff, tranny, coolant, everything you can think of cept plugs and wires yet!! well we uncapped the cut out and we raced a few times...he had no passengers i had a 200lb guy in my car well lets say we got all the jumps and stayed even a bit, till my 3500-6000 rpm range came in then started to reel him in and pass him, but he wouldnt stay in it, he would let off around 110 ...went from a few stops and got him all the times about 2 car links each and kept pulling away slowly....all in all his stock t/a is quick!! i think that thing has more mods done to it that we have no idea about!!!
but i have ****ty kuhmo tires so i have crappy hook up, i have black zr1 17x9.5 and 17x11's comming in along with my 315 nittos and 275 up front ( duno which tire yet) but damn why is his car that quick?
ive raced a modded LS1 99 maro that had more mods than my bro ( long tubes, exhaust, lid, and some other free mods) and i put some lengths on that guy..yall may have seen? i had the video of it ELS1..search for that and youll find it!!

Randy