Been tuning LT1 and LS cars for some time, but having difficulty with a friends 2009 4.8L 1500 Chevy Pickup. It will not spin the tires no matter what I do. I have tried several different attempted modificiations to the TM tables in both the Engine and TCM with little to no success. Not familiar with "Tip-in Torque Reduction (ft-lb) Vs. Torque Vs. TPS for all gears. Do I zero these tables or max them out to get rid of TM. I'm using TunerCat, anyone with a .cal file with successful TM removed would be appreciated for comparison or steering me in the right direction.

Thanks