Wheel and tire question for 68 GTS

so many tire size recommendations it get's to be too much. in the end, all said and done what tires front and rear with no modifications to car can I go with? I have brand new stock 14x7 cragar s/s wheels. I want it to look aggressive with the tire setup but don't want cut up my 68 dart gt. you also mentioned a registry, how would I go about finding that? thanks for all the suggestions, look forward to hearing from you guys, thanks brian
Scampman. I don't think I answered your question from your reply. The tire size on my Dart is 225/70/14 on the front and 245/60/14 on the rear. It has a nice aggressive stance/look and no mods were made. I'm going to 15 inch rims as the rims on there are the original 5 1/2 inch mopar rims. I have tires over 9.5 inches wide on 5.5 rims on the rear. They would be much better suited for 7 inch rims. Cragar SS's cant be beat. The tires are for sale if you're interested. BF Goodrich radial T/A's rwl. Only have about 2000 miles on them. Send me a pm