I have a 67 fastback Cuda, I mini tubbed it and moved the spring inboard 3"
I decided to use body springs because S/S made the car sit up too high.
ride height of the car was about 27" in the back and 25" in the front
I had the spings Dearched 2" it now sits 25 1/4" in the backand and 25" in the front