hi I'm new to the tuner thing I have a 2007 crew cab I have the put a set of 20s on the truck with a 275 /55 and I no longer can spin tires on dry ground where before I could not keep the stock wheels from spinning only thing I have done so far is reduce toque mgt by 75% the truck has a 6.0 4l75e and 3.73 if any one has any input would be much appreciated
thank you