Carl...thats a great explanation...one that I can agree with. I've had some experience with BB A Bodies over the years as well .My reason for asking was ; many stories and rumors out there ( and in this thread) that Mr Norms made the 1st BB Dart and it was supposedly some big surprise to Chrysler officials when he took it up to them. If they were already building the BB Barracuda, its really not a big stretch to build a BB dart, since they have the same engine compartment.
Chrysler may have built the BB Barracuda before the Dart, but Mr Norm still did the first BB A-body before Chrysler