Will a 275 tire fit in the front of a duster?
Sorry, that isn't my car, but it is another guys on this forum (can't remember his screen name, but he owns a transmission shop someplace). I just saved the picture.
According to my notes, those are the Mustang 17x9 Cobra R wheels, with 5.95" of backspacing (or more accurately +24mm offset).
Search for "leadfoot rally" on here, you should be able to find the build thread with more info.