Re: 15" Rally's on a Stock 67
Ya -- what Eric said. 15" rally will fit fine, just be careful on getting the right backspace. I'd reccomend 15x7 with 4.25" BS on the front and either the same for the rear or a 15x8 with 4.5" BS.
I had vette rallys (15x8, 4" BS) on my '69 and at the rear I had to trim the wheelwell back a bit and keep the suspension up high to keep from rubbing. The 15x8, 4" BS up front needed a REALLY high front end to keep from rubbing (this was with 235/60R15 tires) Moved to 15x7, 4" BS wheels with the same tires and the outside cleared fine, but the fronts would rub the frame rail at full lock. The 15x7, 4.25" wheels up front should keep you from rubbing the rails and the 15x8, 4.5" rears center nicely out back.