I'm in the process of building my '64 moredoor. My goal is to have a pretty sweet sleeper when I am done. She originally had 13" wheels on her when I got her. I am thinking about keeping the 13" profile. When she is done she'll have the 327 backed by a TH400 (maybe) with a posi. I plan on running her mostly street. A buddy had me convinced to go with 355s but people on here suggest 308s if I am going to keep it mostly street. I still have time to make these decisions. I'm currently prepping the front end for a CPP upgrade. Should I keep the 13" setup? Will I need to order anything special with the kit from CPP if I do keep it 13"? Wheels are way down the road right now too, just tossing some ideas around in my head so I can do some research along the way for wheels/tires.