Will these work for my dart?

New to the Dart world, and by reading the forums it seems everyone has a different combo or rims / tires with most people running two separate sizes.

I have a 1969 Dart 4 door custom. I also have a set of 14 inch steelies. Stock suspension and brakes etc. Can you tell me if I will run into any problems running a 225/70/R14?