Reducing the wheel OD (rim and/or tire) is very effective, except that it ruins ride quality, ground clearance, and traction, and looks too import for most people with classic musclecars.
Here are 26.5" (about average) OD tires on an import.
Front 245/40-19 on 8-1/2 X 19
Rear 275/35 on 9-1/2 X 19