1966 dart commando 4 speed id

In 1966, the VIN will indicate the engine size, but, not whether it's a 2 bbl or 4bbl. The fifth digit is the engine size. If it's an original 273 car, it will be a D. If the VIN starts out LL,it's a base model Dart, LH would be a Dart 270, and LP would be a GT. The next two digits are the body style, then the engine, then the year is the sixth digit. Without a fender tag or build sheet, the only way I know to verify what the car originally came with, is to contact Chrysler Historical to see if they have the original IBM card that they can decode and give you that info. Good Luck!