Red side walls are the same as redlines. F70x14 is a tire size. You could have E70, G70, H70 etc. The letter was the width and the 70 was the profile. F60 were wider (fatter) than F70. E70 were narrower than F70. 14 is the wheel size in inches. I think my original 69 GTX back in 69 came with Firestones but I'm not sure.