In order for us to fix you up with the correct Carburetor kit, we'll need the part number off the tag. On Zenith Carburetors, the ID tag is riveted on the float bowl. The tag, is about the size of a dime. The tag should have two numbers on it. One on the outside edge is the Allis-Chalmers number. The one closest to the rivet is the Zenith number. Either number will suffice for a kit lookup. 
NOTE:  Our Carburetor kits do not come with throttle or choke shafts or jets! We do off them individually as service parts.