Pulling setup ? Your thoughts

The front has a leveling kit , back has 2 inch block , i run the air bags at 20 lbs, just enough to give me the 1" i need for the bump stops that are allowed in the class. When i check my marks after pulling , the back tires dig down twice as much, this is stopping at the end of the run without sitting there and digging holes to china, my question is that it pulls or looks to be about level when you eye ball the truck , what i was going to do is put 100-120 lbs in the air bags , adjust the bump stops to get my 1" that are allowed and pull with the rear of the truck alot higher then the front, reason being i think it would make the front end do more work ? ok , let here your thoughts brothers and sisters ????$.02