Well, the best thing for body roll is a sway bar upgrade. I have the Hotchkis, and it is a huge improvement. In fact I would highly recommend them over springs for your first mod.
The reason I am going with the Kings over the eibach, B&G etc. is that the GTO has no rear camber adjustment. So by using a stiffer spring with the same stance I can eliminate the squat, plus just by lowering the front a 1/2 inch will equal out the fender well space from the front to rear.
So all I will do is install the springs, and get a wheel alignment... and all should be godd. :cool
ALL ->>> sorry for highjacking the thread... we should start a new thread on sprigs.