Anyone Use 275/60-15 BFG TAs with Cragar Series 61C Cragar SS on Their Duster?

My dad’s 73, 340 4spd duster he bought brand new. 15x8 w4 1/4 backspace and a factory width a body 8 3/4 with 275s

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Nice 73!! What size tires does your dad run on the front of his Dart?