i agree with john need a new tuner

 

I did go to the track Friday, didn't slip into the 15's though.

R/T .210
60' 2.476
330 6.957
1/8 10.544
MPH 68.56
1000 13.605
1/4 16.145
MPH 89.40

I think my next purchase will be a 3200 Circle D.

 

IDK what's up cause i think my truck is DOG slow. I ran 15.75 at 88 with full weight and heavy 20s. That was bone stock with 3.42 gears. Since then I did a servo swap and had my cats cut off, shift points raised, and removed tq management. Haven't beat my time but I've raised my MPH to almost 92

 

wat size rims u run with? thats a good mph for mid-low 15s

 

my 4.8 wt long bed with all out 93 oct tune no tm, long tubes, exhaust, 3.73's went 15.1 at 90.5 60ft's are horrible, similar to what you guys are getting high 2.4's. thats on my centerline 20's which actually are a little lighter then the stockers but not sure if the weight is out further or not. i thought id get 14's with better da but never got there before summer came.

it made no difference stalled up to 15-1600 or leaving from idle or anywhere in between. truck was dead consistent less then .1 variation between all runs

 

07 Denali 18s

I was talking to a guy with a supercharged Buick Regal (03-04, somewhere around there). He ran a 15.5 with nearly identical MPH. With my stupid 3.23 gears, I don't even shift out of 2nd.

 

ya those gear are hurting u bad, u need some 410s in that thing