i ran 325/50's and 28x10.5 slicks my 66 belvedere, we cut the front edge of the fender lip as far forward as we could, i traded my 325's for 315's(for another car)i can try them on the 66 if you need me too but if you already have 29.5's on yours then your there, a 315 is only 29.6" tall