Carburetor Recommendation
Hopefully, someone more knowledgeable can chime-in, but a #1945 Holley would have been the correct 1 BBL carb for the 1975-76 /6 setup. I had the OEM 1945 installed when I got my ‘75 Dart Sport /6. It was stalling when decelerating after highway driving. I swapped it out with the later “Economaster” 80’s version of the Holley 1945 and my car had never been more responsive. It was a night and day difference to daily driving.
I recommend a Economaster version of the Holley 1945 (if, you’re considering trying a Holley over Carter).