ctsvwannabe

I am just starting out trying to do some of my own tweaking of the PCM calibration in my 05 CTS-V - does anyone know the exact differences between the 04 Z06 LS6 and the 04/05 CTS-V LS6? Different injectors? Cam? Intake? Throttle Body? I believe that the exhaust manifolds are different - anything else? I see radical differences in the main VE tables above 4400 RPM between the 04 ZO6 factory tune and the 05 CTS-V factory tune. According to the factory VE tables, the CTS-V LS6 has greater VE at higher RPMs than the 04 Z06 (highly unlikely). Any known component differences that would account for this? Any thoughts?

Thanks for any insight!

ctsvwannabe