I'll let Steve fill in all the details about his '99 C5 that he just put a ATI 7 PSI Supercharger in and his first dyno with it installed.
I met with him at a dyno shop that uses a Dynopack chassie dyno that they take the rear wheels off and bolt a chassie unit to each wheel.
In seeing this I am not found of that type of dyno. I believe the dyno results are a tad lower then the real performance numbers.
At this time what is needed to complete his project is larger injectors, finding out why boost only went to 6.39 lbs, I will compete the PCM calibration tuning and the IAT is a bit hot even after going through the intercooler.

These are results of combining 3 dyno runs.