Front tire clearance on 66 Dart

With fenderwell headers and 15 by 3.5 skinnies up front on wider 74 Abody spindles I can't really say anything other than there is not a lot of room. You will have to make sure the wheel has the right offset. If you have the 5x4.5 BP at least you can get some wheels to try! Sorry not to be more helpful.