This auction from Parts Attic is for a used Holley Carburetor 3310-3 750 CFM Vacuum Secondary Manual Choke 4 Barrel 4150.
This carb was originally designed in 1965 & used for 396 Chevelle 425 HP.
Probably needs 25.00 carb kit & cleaning to get back to specs but may be ready to install.
Appears to be in very good condition.
Many more pictures available upon request. 
Please email Rick through eBay for any questions. . 
Many more complete Chevy, Ford, Mopar and other vintage parts, both NOS and OEM parts available.  
Additionally, you can visit our Collector Motors site on eBay .  
Appointments available for viewing at our offices located in Houston,Tx.
We will crate & ship domestically.