That's awesome. I'm confused why I couldn't even break the 300 mark for RWH out of mine with the whipple, headers, exhaust & nelson tune . I have an '02 LS6 cam sitting under my desk waiting for install. Hopefully that should do it.
Great Numbers on your truck
No more trucks, but this is what I used to have. 2000 GMC Sierra, 6.0L-LQ4, Built 4L60, LS6 Cam, The Other Guys Headers, 3 inch exhaust and 7 chamber flowmaster, 43lb injectors, Nelson Tuning, Drop - 3/4 McGaughys Spindles, Bell Tech Shackles & Hangers. Best time 13.59 @ 106