Originally Posted by fusionchicken
Sounds like you ran a heads/cam z06? Hard to beat 600 whp n/a cars in their consistency
That said i'd take a FI 600whp m3 over a z06 all day!
Car is bone stock aside from catback. 40 to 120 about dead even...game over as we approach 130.
We both dyno'd our cars twice...on Dyno Dynamics i put down 446 Shelby put down 546...on a what appeared high reading dyno i put down 486 and he had 603 that day...
I also have another friend with a 560whp Shelby that i pull on as well.
Im convinced thats it the aerodynamics plus weight that helped me.