Holley model 2209, 2210 and 2245 are similar 2 barrel carburetors produced in the 1960s to early 1980s. They most commonly appeared as original equipment on Chrysler and IHC engines, and many were sold as service replacements for Chevrolet and other makes.
Holley 2210 and 2245 carburetors used a 1-1/2" SAE flange, which is the same flange as large Rochester 2G carbs, some Stromberg WWCs and large base Carter BBDs. Mopar engines equipped with Holley 2210/2245 carbs were mostly 360 and 400 CID. The 318 used small base 2 barrel carbs which were the small Carter BBD, Stromberg WW or Holley 2280. Bolt centers on this flange are 2.00 X 3.685 inches.
Model 2209s were used on American Motors and Jeep, and used the large Holley 2 bbl (2300) flange, which has bolt centers of 5.16 X 3.46 inches.
How to find carburetor numbers
These carbs are usually stamped on the front of the float bowl with the Holley LIST number, and sometimes with a vehicle manufacturer number and date code as well.
More information on how to find Holley carburetor list numbers