340rwhp is easy mid 12's in the 1/4mi possibly low 12's if you have it tuned in real good suspension-wise. if your buddy's LS1 is running low 12's it sounds like he has more than just your basic add-ons. maybe nitrous? i know chassis dynos are all different but 340rwhp is nothing to be upset over with stock heads and stock bottomend, imo.

 

Who tuned your car? Mail order or dyno?

The torque is lower than it should be -- your tune might be off.

340hp is pretty good for a hotcam.

 

race ur friend from a dig next time and see what happens.....

 

My car was tuned at the Dyno shop in santee California. I have a feeling my car isnt putting out 340 but u never know lol. My friends car doesnt have nitrious hes my best bud and i checked his car lol.

 

That is VERY nice numbers. I put down 310 rwhp and 325 rwtq with shorties, and a cutout, plus all typical bolt on modds, and with opti breaking up at around 5400 rpms. Since then ive replaced opti, and gutted the cats. Hopefully redyno soon.

 

340 does seem high for a cam only lt1. Pretty much what I dynoed with my heads/ cam car. If your car does indeed make that much power with 500 lbs removed, I don't see why mid to low 11s wouldn't be possible.