Please help me ID this Holley 2-barrel.

Thanks for the replies, folks. Poking around their site, I found that Holley maintains a bunch of instruction sheets for their carbs. Good for them.
However, the catch is that you have to enter the part number to download the info. I tried entering each of the three lines of characters stamped into the float bowl, pictured above. No luck. How do I go about finding the part number for this carb, please?

BC