'65 Barracuda FS 14" vs 15" Rallye wheels

Didn't those cars start life with 13 inch wheels?
Yes they were 13 with a 14" option.

I think I would go with the 15's, like lots say more tire options and I think with 15's and the shorter side wall you'll have better control in the corners. I do like the looks of 15 ralleys on the early A Barracudas.