1964 plymouth valiant with 225/60/15s for the front

I also tried with my 15x5.5 Steelies with 3.5” backspace and same tires (165/80R/15) and they rubbed in the same front corner.
BTW- I love the look of those BFGs on your car. That profile looks perfect. If the wheels had a little more backspace I think you’d be in the clear.