biggest tire that can fit in minitubbed a-body?

heres my car-70 dart , tubs moved in flush , lips trimmed flush , springs moved in.

rear is moved back 1.5"

15 x 10 welds w/ 7.5 bs

hoosier slicks 29 x 10.5 . these are about 13.5" wide at the sidewalls when mounted

for a 29 or taller you will have to either :

trim the quarters at the front

or move the rear back


unless you have a narrowed rear that tucks the tires under the wells real good