Need help with rim backspacing on 1966 Chevelle

[bamafrost]

Changing stock rims (15" not 14") and going with American Racing TT II or Cragar Super Sports in 15" size. Want 7" wide on front (will be converting to current drums to front 11" power discs) and 8" wide on rear.

Can somebody advise on best backspacing? Will probably put 225/60/15's on front, and 255/60/15 BFG T/A's on the car.

Thanks for your help.

Tom bamafrost at yahoo dot com

[TheYellaBrick]

This has been discussed several times in the past, so I'm sure the Chebby folks will be piping up to help out. Got pics ? :D