Buying Wheels for 70 Vert

My 72 I parted for my 70 are 14's and roached. Need new wheels. Would stock wheels for a kinda GSX vert wanna be better as 14's or 15's?

Don't laugh, my Hemi and my 70 SS454 Chevelle both ride on factory 14's

 

15 inch of course. Chev division, Chevelle, had the only a-body car with 14" wheels available.

 

My 72 Skylark convertible had and still has 14's. Not that I havent thought about 15's but didnt a lot of A-bodys come with 14s. Did all GS models come with 15's?

 

I would go with 15x7s. Not only do they look better, you might also have a better selection of tires than with the little 14x6s