Put new coils in the rear. Moog #5419 will do the job. Simple install and the "load" is where the load is designed to be. If your car has any metal fatigue or rust at the upper shock mount area, too much load/lift can put your shocks in the trunk. Your car looks great the way it is, but that's just my opinion. I'd try to get some wheels that tuck inside the wheel wells.
Originally Posted by cletusvandamme
I currently have airshocks on my 70 chevelle and even when fully inflated the sidewalls of the tires can still rub when I go over a bump. Are there any air shocks that can go higher?
this is fully inflated
want something that can go high: