Agreed I see it all the time!

 

I'm sure you do, but they are not stock or exhaust only cars. A stock LS1 F-body is going to be in the 13s. No exhaust only 4th gen is going to run a low 12s unless you gutted the hell out of it for weight. The cars that are in the 12s are modded.

 

The one is a WS6 Formula, and the other is a "base model" Trans Am.

 

Lol. We also have a guy out here (now has a 408 setup) that with an exhaust only setup (stock heads, cam, etc), 4000 stall/3.73 gears he scraped together an 11.9x (1.5 60' on slicks). Granted, the car does have some weight reduction, but still, he ran 11s in the 1/4 with a stock motor...

 

My wifes auto '99 Trans Am does 12.9 with the same mods as OP (unless yours isn't tuned). Trap speed below 100 is kinda crappy - I bet its running rich because of the temperature.

BlackZ83 can you scan some time slips? You posted your 60ft which isn't the worst I've seen, but if you want help at the track always try n post time slips.

 

My 99 z28 had 231,000 miles on it was running 2.1 60s and a 13.7s spining really bad threw 3rd gear and Alls it had was all free mods a 255 pump slp push rods stock exhaust with cut out viper prep t56 spec 2 and b&m ripper shifter I think that's very impressive!

 

i've seen plenty of 01-02 cars run high 12s stock.