Tire sizes for 14 inch wheel drive 1970 Dodge Dart

Depends on what width your stock rims are. I believe they came in 14x4.5 and 14x5.5.

The 205’s have a minimum recommended rim width of 5”, and the 225’s have a minimum recommended rim width of 6”. So, check your rim width and see what you’ve got. The tires will clear fine with the stock rim offsets and SBP suspension/brakes, it’s just a matter not squeezing more tire on the rim than you’re supposed to.