'65 Barracuda FS 14" vs 15" Rallye wheels

If your are using small bolt pattern a nice 15 inch tire combo is 205 70 15x4.5 with 3.25 backspace and rear tire 245 60 15x7 with 4 3/8 back space. I run that combo but I run a 255 60 15x7 in the rear instead of the 245. Honestly going to 15inch is going to be the norm as tires are not really being produced in 14s as much as 15s