How stock is stock? Have you done a fuel pump at least? If not you should. If you have, turn up the boost a little and smoke him. (add some octane) I have a friend with the brand new Roush (spelling?) gt and he ran low 13's with it. I think he even had the under drive pully for the supercharger. In all fairness roush fattens the mixture WAY up when they under drive the supercharger so it doesn't have the effect it should. It's a warranty thing. Also, he was on factory rubber. Still, it's allot faster than the 06 gt's I've been in. HTH. james