I have a 65 chevy impala SS, and wanting to know about tire size. I'm putting 20x8.5 rims on the front and 20x10's of the back. Any suggestions on tire sizes? Thinking of 245/45/20 on the front, 285/50/20 or 285/55/20 the back. Anyone running 20's on their car? Just want to know if the tires will give me any rubbing issues. Open to suggestions on tire size.