David, You might try this source. http://www.musclecarclub.com/library/tech/tires.shtml Gary > > Ok I'm going to get rid of the bias plys and go > with the new radials. on 64 > sport fury ???? what size do I go with in the new > lingo. originals tires > were 750 14 on 5.5 rims what is the biggest tire I > can put on? 205/70R 14, > 215/70R 14 or what . What have you been happy with. > I don't want to change > anything else just the tires. Dave O > >