There are several carburetor kits for the Holley 1920. Please be sure to match up your carburetor number with the numbers listed with each kit. Here is where the carburetor number can be found. The complete carburetor number may not be on the carburetor. Example R-4161A. R simply means carburetor, 4161 is the list number and for out purposes is what matter most. A simply means it is an assembly. 1A would mean a modification was made. In general look for the list number. This will usually be 4 numbers.
Where is the carburetor LIST number?