What size tires fit a 1966 Plymouth valiant?

some valiants had 13" wheels and some had 14's. the base models and most of the /6 versions had 13" wheels, mostly the V8 models had 14's. my '65 had 185/70/13R tires when i got it and they worked fine. it's hard to find 13" tires. you could probably fit 195/70/13R or 195/60/13R tires too if you wanted. the oe steel wheels are not too wide, so 185's work really well.