Not the backspacing, but it does require larger diameter wheels
and the rims have to fit "Cobra" brakes. Late model 17" Mustang wheels will fit, as will some others.
If you do a search (try "Mustang Steve"), it will show up several threads that will give you an idea of what kind of wheels fit.
Also you can email "Mustang Steve", I'm would think he should have a good database on what will fit by now.