hate to ask 73 dart sport 15-16s?

ducter said
Ok, from the replies here and looking at the car, it's lbp which would make it 4.5bs, correct?

If I wanted to go with 16s, would it be as simple as 16s on 5@4.5 or adapters and such needed? A tire size that would fit front and rear without spacers?

If your going with bigger wheels I recommend at least 17" because of a lot more options tire wise. 18" have even a bigger selection.

17 or 18" wheels/tires look great on these cars. So much better then tiny *** 14" do.

You just have to make sure you get the proper backspace.