Wheel and tire question for 68 GTS

Nice car....Personally, I would keep the original 14 x 5.5 wheels.
Thats a collector car, and is worth more with its original wheels.
If you must experiment with different rims/tires, keep your oem wheels for another day.
If you're talking about my car I definitely plan to keep the original tires and wheels , I just wanted a diferent look for awhile and I like the redlines with the body colour wheels and small caps.