I agree that 265 will be too big unless you have already made mods to fit them. My 255s BARELY fit my 69 Valiant. Its also important to note not all 255s have the same shape (section width and tread width). I went from 255 Cooper Cobras which had a section width of 10.2 to the Mickey Thompson ET Street radials which have a section width of 10.3, which is almost negligible. BUT what almost bit me in the *** is the tread width! Cooper doesn't advertise a tread width but the ET Streets have a much wider tread width (8.8"). Meaning the section width is wider all the way to the tread or less balloon shaped so to speak. Just food for thought. Hope all of that made sense.
