Most of the 65 273-2bbl cars were equipped with 13 inch wheels. If so, then the correct tire size was 6.50 X 13, with 7.00 X 13 optional, according to my '65 Mopar parts manual. Wheel size was 13 X 4.50.
I've got 2 of those 13 inch steel wheels and 7 or 8 of the 13" mag look hubcaps also if anyone needs them.
Note I dont have the long chrome lug nuts that go through the holes in these hubcaps and they aren't cheap.
