Here are the Pro Trac 5.60-15's (too small height wise) on my old 69 and a set of Firestones on TT which are a better-looking tire IMO. I think the 700 tires look too tall for street use and overfill the wheel wells. (just my opinion)
Pro Trac 5.60.15 on 4" Cragar Front
Firstone 6.40.15 on TT 5" Front