Thought I'd post the results

DYNO

Forged 348ci
Stock LS6 heads
Stock LS6 intake
Stock Throttle body
Stock pulley
Edelbrock 1 3/4 stepped 1 7/8 HVMC headers
223/228 @ .050 108/108
Stock 4L80E with Stock verter
8.5" 10 bolt with 3.73 (riveria wheels)


Nitrous to follow:

http://performancetrucks.net/forums/showthread.php?t=398925