With a b-body rear end and the offset shackles and clevises 295 was the largest that would fit in the fender well for me anyway, had to do some trimming on wheel well lip up top, also had to make sure the diff was tracking straight, luckily my uncle owns an alignment shop so I can make spacers...
Is this thread still alive? That was my red cuda I built with my dad. 9-in wheels in the rear on 295 50s and 8 in the front can't remember exactly what size