273, the good points

Hee! :D That's NOT what the FIA thinks. What counts in this case is what Dodge & Plymouth told the FIA in the official paperwork rather than what actually came down the assembly line. ;) And that says 15x7 wheels, and 10.5" clutch for the Dart and 10.5:1 318 for the '66 Barracuda among other goodies! :D

Ma Mopar never produced a Dart in 1966 with 15" wheels or a 10.5" clutch. Is that something they allowed?