Andy recently got rid of his 08 C6 and bought a used 06 Z06. It made 445 RWHP, bone stock. About average.

With a CAI and tuning it made 483 RWHP. Jesse and James installed one of the A&A Corvette blower cams and a set of American Racing Headers and it made 535 RWHP and 505 RWTQ. This was impressive and a major improvement over stock. It had a very nice little lope at idle and had absolutely no bad manners in traffic.

Then we installed one of our standard supercharger systems with an Si-Trim Supercharger with a 3.8 pulley. We didn't upgrade anything over what comes in my standard system. It made 665 RWHP and 625 RWTQ with only 13 degrees of timing and about 6 1/2lbs of boost.
That's on 91 Octane California crap gas!
Andy is really happy with that. (For Now!)

Here are the 3 comparison graphs of the Callaway Honker and tuning vs. A&A blower cam, headers and tuning vs. the cam, headers, SI Trim and tuning.
http://i69.photobucket.com/albums/i55/Vettepro/AndysZ06SIHPcomparison.jpg

http://i69.photobucket.com/albums/i55/Vettepro/AndysZ06SItorquecomparison.jpg

Here is the graph of the Supercharger run alone
http://i69.photobucket.com/albums/i55/Vettepro/AndysZ06SITrim.jpg

After that... Andy added a splash of Octanium and 2* of timing and it went 676 -637 but started to drop fuel pressure. He chickened out and pulled the timing back out and is driving it as is for now. The car, as it sits, is a joy to drive. It's got that cam "sound" without the bad manners. It makes great power and isn't totally out of control.

Andy has had 4 C6s and he can honestly say that he enjoy this combination more than anything he has previously built.