73' B3 340 Duster pro touring build

The fronts are 26 1/4, the rears once inflated are suppose to measure 27 3/4". My 390's are 29 1/2".
As long as it doesn't have that rubber band on a rim look, It still will have enough rubber to tuck up in the wheel well. Some people like that low profile tire look but it's not for me especially on a muscle car.
thats the problem im running into. i can fit a 11.2 inch wide front tire just fine, but at a height around 25 inches roughly. I'll be running 18s so I should still have a 3-3.5 inch side wall. Or I can go with a 10.8 inch wide front tire at the height of 26 inches with a 4 inch sidewall. decisions decisions