Tires: Tire Size for Vintage Car, uniroyal tiger paw, 1968 pontiac tempest

Question
Barry,
   I have a 1968 Pontiac Tempest Custom convertible that I want to change the tire size on (due to tire rubbing on front fender when I make turns).  The front tires seem to be slightly oversized.  I currently have older Uniroyal Tiger Paw (205/75 R15) tires on the car.  The rims are new American Racing Wheels Torque Thrust II 15"x7" rims.  The clearance on the rear tires are fine but I want to put a wider tire on the rear.  I would like to put tires on the front that are about a half inch less in diameter than the ones that are currently on the car (this will keep the front tire from rubbing on the fender when I make turns).  I would like to install BF Goodrich Radial T/A tires on the car.  Can you recommend the proper tire sizes for the front and rear?  I want the rear tires to be wider than the front but not so wide that they won't fit.  I was thinking maybe a 60 tire for the rear.  Thanks for your advice.  

Answer
Terry,

A 1968 Tempest came with 7.75-14's on 6" rims inflated to 24 psi front / 28 psi rear.

A P205/70R15 inflated to 32 psi carries the front load and fits on a 7" rim (barely).  A 225/60R15 inflated to 34 is adequate for the rear as well.

Hope this helps.