Sounds like the slip shaft bolts may be loose. These are the 2 bolts that attach the a-arm to the chassis and are the alignment adjustment in the original application. The left turn you are getting is the caster/ camber changing when the right arm is shifting. Get the arms as close to even as you can and torque the to at least 100 ft/lbs, then get it aligned to specs. Heidt should be able to give you specs for your application. Make sure to tell the alignment mechanic to torque the arms after it is set to prevent re-occuace of the problem. This problem is common to vehicles that use that style adjustnent if they are not tightened properly.

Bill Burmeister