I don't know the exact name for this but it came off of a 1965 Skylark with the 300. It runs exhaust heat to open the choke. See photos. It looks original and came off an engine I parted. $25 + shipping from 60586 Thanks, Brian.
Dan, I don't recall which. I took it off an engine years ago. I've had a few 2 and 4 engines. I'm not sure if there is a difference in the 2. This is just one of the oddball things that are laying around here.
No sweat. I once had a bunch of these things laying around here. I think I pitched the rest and kept this one since it was the best.