Tire choices for rallye rims?

There are a bunch of posts regarding this question if you search. I read most of them before I bought a new set of tires. I just went through the same thing with my 72 Swinger. I had 10 year old Firehawks 215/70/14 all the way around on AR 6 inch. I have 5.5 rallyes now with a new set of 215/70/14. Even then there isn't much more than a finger width between the tire and fender, and 1 inch to springs. Some 215s list 5.5 as minimum wheels. You can probably get a section width of 225 or more under the back on 5.5. But.....A 215 looks about right to me. I would guess a 225/70 would rub the front, at least on my car, since the 215 fits with no rubbing.