Off the line pull

If tire pressure is ok. Have an alignment done with you (or weight = to you) in the drivers seat. If you want to get trick have the alignment done with the front end lifted 2-3" to simulate acceleration. Do you have a dead shock? Lift each wheel off the ground and check for brake drag. Are your front hangers flipped or in there normal position? SS springs work as intended when installed correctly with hangers in their stock location. Your car should sit higher on the pass side. If you car sits level in back then you have messed up the pre-load that is designed into the SS springs.