Harley Davidson Tillotson HD2AB Carburetor & Adapter/Spacer (OEM 1967-70)
A few pieces are missing, such as the accelerator pump cam and screw. Also required is an inlet elbow. And a complete cleaning and carburetor kit will be required, prior to use.
What's unique about this assembly is the one-piece choke plate. Most Tillotsons we find come with the two-piece choke plates. However, we know the Tillotson was offered in a few different configurations. So the one-plate design may be unique to the HD2AB assembly. That being said, more research may be required.
072221 CR-3 (21 07 18, 1-16)