what tire for these wheels?

I have a 65 Barracuda
I have - 5 on 4" - 14" centerline wheels, (2) 8" with 4" backspace and (2) 7" with 3 1/2" backspace. What tire size should I use with these wheels on this car? I am looking, as you may have guessed, for maximum traction and a good beefy look.

Also, the center caps are missing. Any ideas on where I can get any caps?
Thanks, David
Author: admin