my buddy has a 4wd ecsb and the truck runs 12.20 and he leaves in 4wd and then switches to 2wd and has no problems he has a flt5 and a stock transfer case and is lowered to where the shafts are level

 

Lot of our guys in Avalanches do the same in 4WD. I do the same in my lowered Av with stock transfer case and a level 5 65E.

Never heard of anyone having an issue with this sequence...

 

i will try it next time my 4l80 is almost built and i will be putting on a set of 16 or 17 inch rims and bit more timming.

 

For a non intercooled KB - that is pretty dam good! congratulations!

 

New intercooled times?

 

not yet going south for a week waiting for my lean shut down switch from dynotune so i can finish up the tnt kit and going to mill down my small pulley and see if i can get the belt to stop slipping. should have her done in week when i came back.

 

Still waiting on those intercooler pics..... haha