Lee, I have noticed this difference but only on the Valiant. The 64-65 Barracuda seems to have the same (narrower sweep). At least that's what I've notices from looking at pictures online!
Valiants and Barracudas use the same fenders. If you have seen pictures on line with the wide sweep on a 65 car they have put 64 fenders
on the car. Same with the 65 narrow sweep fenders on a 64. The factory could have used left over 64 fenders on a 65, but highly unlikely as
they always want to stress the "new" models. 64 and 65 Valiant and Barracuda grilles are different as well. There are differences in the tail
light bezels between 64 and 65 too.
