Ladder bars..??..

yep, it wants to lift the drivers front tire while lifting the passenger rear tire. This is why most cars fish tail to the right when they take off spinning both tires. What J par could do is put one air shock on the passenger rear and preload. That would be really old school and a "shhhh" launch secret... :D I personally like factory leaf springs with slapper bars if a guy can't afford something expensive. Set the passenger side slapper closer to the spring eye. If set up right, the back of the car will lift evenly.

old chevy tricks-----------