I just purchased a 06 Mustang GT with a Supercharger and would like a recommendation of a good shop in Colorado Springs. I wan't to adjust the tune from a custom racing tune (currently tuned by a Diablo) to something easier on the engine. I am also having issues with the idle when I cold start the engine. It revs at about 2200 RPM for about 20 seconds before settling down. The 2006 Mustang only has 9k miles.

Thanks,
Mike