OK, back in the "old" days (1970's), stock eliminator cars had to keep the original rear (7 1/4). Lowest ration available when I started was a 3.91, hence the short tire. I actually got the first set of 6x22x13 m&h made. I had seen a similar set on a road race car, and contacted them about a drag slick. Eventually wound up with a 8x22x13 on 8 in wide steel wheels. When I started racing my 66 Cuda, about 2001, I used the same size tire, as I did not want to move the springs, or touch the fenders. The only other tire that would clear was a Pheonix 26x6x15W. Any other tire I tried, the sidewall (section width) would either rub the spring or fender lip. The 13 inch slicks have the large part of the sidewall lower then the fender lip. The tire works on my car. It 60 fts at 1.78-1.79 with a 170 slant six, and 3250 lbs.
PS: I could run a 8x22x15 tire, but then would need new rims, and still not be able to get tubes.