How fast is a C6 Z06?

[re-rx7]

Originally Posted by Smurf50 New Shelby's SHOULD pick on them given the almost 140 hp advantage (guessing that from parasitic loss the new GT500's are putting 640 to the ground of the 668 advertised hp). Modded 5.0 vs Z06 (even c5 with nothing major), the Z06 will be either dead even or walk it on the top end

C5 Zo6 and a stock 5.0 track pack gd race 1/4.