Yes, I read the thread from back in August 2012. It's exactly what I was interested in reading. My car was not A/C so I still don't know if it was covered under the dealership Carter 6125 conversion program.

from 72RoadrunnerGTX:

I will provide further first hand back-up of the existence of factory provided Carter conversion kits for the Holley 4160 applications, performed the conversion many times myself during my time at dealers back then. They were packaged as complete kits, fuel lines, choke springs, any other hardware required, fully covered if under warranty. Installed correctly, appeared completely factory installed. Can�t tell you just how many 4160�s wound up in the trash, considered pure junk then by those who serviced them and many under hood fires were blamed directly on them.

Looking at it from hindsight, the original Holley in my 71 Roadrunner was very probably a non Air-Grabber R-4668A. I'll probably never know if the Carter 6125S that was in my car was a factory retrofit under a warranty program. But you know something? it probably explains why i keep seeing so many references to Carters in shop manuals that I've seen including my original Chilton's repair and tune up guide for Satellite/roadrunner 1968-73.

Thanks for finding and then including this very interesting thread from yesteryear!!