How wide a 17" front tire for 66 Dart?

My '63 Valiant with 245/45R17 Mustang wheels is going to need a trim on the front lower corner of the fender (hits when you turn them). Wheels have a 5.72" basckspacing, much less than that and you will run into the tie rod end (might anyways).

If you don't mind the trim (isn't really much), I would run the 245's.