1973 Plymouth Duster

I have a 1973 Duster that had the original 14" rally wheels. Can anyone provide guidance on the maximum wheel sizes to use when utilizing standard OEM shocks. I have been told not to use any more that a 6" wide wheel on the front due to clearance problems. Has anyone run a 15 x 7 or 15 x 8 on the back without any problems or should I stick with 6" all around?

Author: roschmann1