Got any pics? Are you sure they're 15x7 and not 15x8? But come to think of it...hmmm. My dad bought a 70 ElCamino brand new, that came with 15x7 Vette rims...the deep ones. I think they were ordered with the car. But I'd sure like to see your rims. My dad got rid of his within the first year after he bought the car...putting on 15x7 reversed Cragars.
http://www.hometown.aol.com/a1supers...page/auto.html . It's at the bottom of the site. Hope to see yours soon.