MDH33
Hard Core 4+
They were all cable throttles until 74 I believe. Not sure what's different about 75. Probably emissions.75 was the only year with the cable-actuated throttle I think, maybe that's why it's desirable/notable. Or maybe it was just a different casting. Somehow I ended up with a cable guide/bracket thing for that one year of 40 that had a cable instead of a linkage. No clue how it found its way to my garage.
The non USA vacuum advance ready carbs are the ticket for desmogged.