Sorry I didnt get back to you sooner man I never really check this page out, but anyways, yea I'm very happy with my setup. 680 is possible but not with stock heads/cams/intake. I'm running stock H/C/I 8.5 CR dynoed 530 on 12 psi with a catted x-pipe and 4:10s. I just street tuned for 16 psi so I don't have any numbers yet, but the car is quick, definitely 550+. I'll let ya know when I get some solid numbers, hopefully in a month or so.
