I believe Crosstown. We lived on the north side so it would make sense. I spoke to the sales manager there and he said they have been around for that long and they sold a lot of performance cars back then.
I was able to contact the guy he sold it to via Facebook. The guy still had it and after some hard decision making he decided to let me bring it back to the family. I am very grateful he did.
On another note and idea how many would 360 4speed cars with the hood treatment would have been made? Number has to be low.