I have E78x14s on 14x4 steelies on a 67 barracuda notch, and they look small. Id bet 205 70 14s will look tiny.
Mine is gonna get 26/11.50x15s E.T. streets in the rear, on 15x8.5 centerlines. Havent figured out the fronts yet, for the 15x5 cl's.
No pics, sorry. Im away from the car at the moment.
Your not the first person to tell me they will look small. Thanks for your comments. This will make me reconsider. Want to fill the void in front but steering ease is an issue.