I see them selling from 1800 to about 3500 depending on how nice and complete they are. The Webers wouldn't be stock, they came with carter sidedrafts.. Manifolds are worth several hundred for the common ones Drive pulleys and tensioners are usually missing and can bring some bucks. While they look neat, they are really not the answer to supercharging. Poor throttle response, short belt life. There is a Latham thread over on the HAMB that would like a pic of what you have.