I am almost finished totally rebuilding a 67 Nova 2dr HT. I have installed disc brakes on the front with 11" rotors. The rest of the front has been rebuilt, but is stock. I want to run 15" steel wheels with dogdish hubcaps. What backspacing and tire size should I use without rubbing? I have heard a 15X5, with 3.5 BS and a 185/65/15 tire will work. I plan on using BF Goodrich radial TA tires. Any help or comments would be appreciated.