Wheel widening
I've have widened rallies before and have had no problems. I'm running 265 50 14's on a 71 Demon. Rims were widened to 7.5 wide. What is nice about this is you can have the rim fitting a lot nicer in the rear wheel well with some good measuring. How ever after getting them wideened you have to paint them so you don't really save alot.