I wouldn't drive an A-body without the sway bar, but as stated you can go bigger on the torsion bars and compensate some. We have garbage roads here in California and the stiffest sprung car I own in a 2004 BMW 330Ci convertible with sport suspension which includes low profile tires on 18" rims. The handling is outstanding, but I feel every poor patch of road. This is the way I prefer a car to behave, but it does come at a cost...pothole damage...
View attachment 1715268583
