Wheel and tire question for 68 GTS

Thanks for the response dart4. The reason I was asking about the two tire sizes was the back is slightly raised. If it was level I would probably go with the same size. The offset for the 15x7 sbp wheels is 4 inches. You have no clearance issues with the 215's in the front? Does your car have the nose piece? Here's a picture, albeit a bad one.View attachment 1715023152

No clearance issues. Car sits level with a very subtle rake. My only complaint is the car sits low. I have bad knees so getting out is a little bit of a challenge. I'm looking at putting Redlines on the car and upgrading to a 235 so that should help. Is your car in the registry? Looks good.