Need help to identify Holley carb

[histoy]

My '71 Charger has a 383 engine with a Holley carb, but I can't identify the cfm rating.  The numbers stamped on the front of the airhorn are List 80145 with 1408 underneath.   It's a single pumper vacuum operated secondary, if that helps any.   

[mally69]

It is 600 cfm..   check this link out.  www.mortec.com    and find the section that says holley carb information.

[mikepmcs]

List #    CFM     Stock Jetting         PWR VLV      Type

80145   600   (F)68,(R)70              6.5             4150

I have no idea what the 1408 is.

[histoy]

Thanks guys for the link and the carb info....Brian

[Chryco Psycho]

1408 is the date 140th day of 78, 88 ,98, 08