Am original owner of '74 260 z that is in need of new wheels and tires. I am trying to decide whether to go to a 14x7 inch custom wheel or stay with the 14x6 inch size. I like the 14x6's but most of the new wheels are recommending 14x7. If I go up in size, what size tire should I get that would give me the same relative look that my 185/70/14's give me now. They don't recommend that tire for a 7 wheel. Should I go to a 205/?/14? or 195/?/14????? Wish I could see them on before I buy them. What are the down sides to a 14x7?