[RichardJ]

For that carb you should have a bi-metal choke coil inside a Choke Stove on the side of the exhaust manifold. A rod from the choke arm goes down to the choke stove. It looks like you may still have that rod.

If I were keeping a 1bbl carb, I'd get ride of that smog monojet garbage and replace it with a Rochester B which was original to '67 inline 6.

The Rochester B was for a manual choke and if your '67 still has the manual choke cable, I would go that route.

If your '72 exhaust manifold has the Choke Stove and the choke cable is missing you could try to find a Rochester BV.