We got the car tuned and strapped it to a dyno today. Since the drive shaft wasn't sufficient enough to make a pull in 3rd gear (tuner was afraid of it coming apart in 3rd) we did a pull in second instead. The car put down 311whp and 297wtq. Overall we are happy with the power numbers our little 5.3 put down. Not bad for a daily driver muscle car. Here are a couple videos...
https://www.youtube.com/watch?v=Uzk399oTy9w
https://www.youtube.com/watch?v=LlwVAQZ8Qj8