205-70-14's are probably close to the original size. They are a little small in my opinion. I had that size on the front of my 67 for a while. Right now I'm running 215-70-14 which in my opinion is the optimum size. They look good and no rubbing. I've seen 225-70-14's on birds and they look too big. I've got those on my 69 goat and they look good on a car that size. These are the 215's: