I'm also running a 295's on my 65 with mini tubs and narrowed 8.75. The wheel and tire are tucked inside the wheel well. Could probably go 305 or 315 with a different size wheel.
Anybody done that? I'm doing it now and its not quite a direct fit. Curious to see how other people did the mods to get it to fit. The outer 2 holes on the bottom of grill do not line up to holes in the car. The top 2 tabs on the grill are bent down and the car has horizontal mounting holes...