"Can a wide 295 fit on an Ebody...". I think it depends on what you mean by fit. I am running 235/45/17 on the front of my '70 Challenger with factory "hemi style" rolled fenders. It "fits" in the sense I can remove Tbars and cycle the suspension through full left, right, jounce and rebound and still have "one thumb (my calibrated hand)" clearance with the frame rails and steel fender in extreme situations. Bigger would not fit by the same criteria. In fact the tire has clipped the aluminum wheel trim that is not made for the rolled or relieved fenders so it is close. How close is OK? Folks running wider rubber either flare the fenders or accept possibility of some rub I believe. In any case, max width requires close match of wheel backspace to the car.