67 Dart Rear tires

I have a 255 tire http://www.summitracing.com/parts/rik-11262/overview/ on an 17x8 rim on the back of my 67 Dart. I used this Summit Racing wheel http://www.summitracing.com/parts/sum-141-7865gm19/overview/ with 5.25" of backspacing. The tires are 1/4" off the springs and close to .75 - 1" away from the outer fender which is stock and not rolled. The springs are in the stock location.