Uhhh.... dunno about TOP na car, but my junk did 550rwhp/505rwtq NA....
6.70@108/[email protected] NA on a real soft 60'.....

Can't find the right graph but you get the idea....



http://www.youtube.com/watch?v=DRCyDctihIg


..... and a weak ass 6.44@110/[email protected] on a broke ass no workin' kit-

http://www.youtube.com/watch?v=jz3WRZ3wTNM&feature=user