The Avalanche and Suburban are pretty much cousins so I figured you guys might be interested in this. I took a trip up to New England Dragway for some opening day racing. The weather was good and the place was packed. I took 4 runs before calling it a night. Ran back to back 14.08s and then a 14.20 and 14.22. Both of those runs bumped the rev limiter going into 3rd. I was going to take a 5th pass but that would have been an hour of waiting and then another 2 hours home so I left happy with the 14.0 @ 96.59 MPH. I launched the truck in Auto 4WD. That produced 60' times of 2.0 on each run (best was 2.00). Not to bad for 6800lbs. 
Tom
Tom