Ran the Avalanche at the track yesterday.
Hot and humid,not the best weather,but it's a number to work with I guess.

15.65 @ 90.36 MPH 1/4 mile. 2.467 60 ft.

6.0L LQ9,Comp 4x4 cam 206/212, Corsa exhaust,Dynatech headers,AEM CAI,42 lbs injectors,Custom tune,3.73 gears, 275/60/20 A/T tires.Stock converter.

 

Not bad numbers for such a heavy pig, get a converter in that thing and will get rolling a lot better

 

Not bad considering the setup you have. The weight, size, gears, wheel size and converter are all working against you.

 

nice times.Did you ever run it stock to get base times?