Not sure if the photos help but, is it possible to decipher which carb is installed on my, new to me, 1975 Dart Sport? The garage this is stored in is very badly lit/crazy dark, and I wasn’t able to see any manufacturer’s logo or numbers (upon very brief inspection).

Looks like holley carb 1945 with idle enrichment system.Early production carb changed mid year, see page 87 in that link. In second picture the round thing on carb with vacuum line is idle enrichment valve.

Thanks for the id help! I also had no clue what the idle enrichment system was (just thought it was all part of the 1 bbl carb setup. Much appreciated.