This is a Holley 6231 Carb. It has a  date code #1551 stamped in the housing and part # 3671199.  It is for a Dodge Big Block. The vacuum secondary are STUCK CLOSED.

 Get with me if more info or pictures are needed.

 

 It is being Sold AS-IS with no warranty.

Only ship to the lower 48 states. Payment to be made within 72 hours of item closing.