It's a 4 barrel off of my 76 280C.
By the electric choke it has the number 6R 5732B.
Stamped on the top on the body of the carburetor are the numbers
L8874 and 1639
I went to NAPA, I went to Summit Racing and nobody seems to find this carb anywhere. I went on the Holley site and also to another site that offers the complete listings of all the Holley carbs made, nothing.

Thank you very much in advance.

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1976 280C
SLOWER DRIVERS KEEP TO THE RIGHT.
DRIVE RIGHT PASS LEFT

Let me dig around for a day or two. I've got the same carb and I got a rebuild kit for it a couple of years ago. Just need to find the receipt.

Thank you very much.

__________________

1976 280C
SLOWER DRIVERS KEEP TO THE RIGHT.
DRIVE RIGHT PASS LEFT

I think I figured it out.
The L8874 number is the "R" number, otherwise known as the "List" number. It should be either and "R" or the word "List" before the number, am guessing maybe they used "L" sometimes?
Anyways, this makes sense, if it is "List" number 8874, it is a Holley Economaster 4360 carb, which sounds like it is often used to replace the original troublesome Solex carb
See if this looks familiar:
http://www.carburetorfactory.com/expvw20.html

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Confirmed there are other 4360 carbs that have an L instead or an R
http://www.stovebolt.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=50469

__________________
Click here to see the items I have up for auction at EBay

Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)

Ya beat me to it. Here's what I came up with.

http://www.holley.com/data/Products/Technical/199R8015.pdf

Mike D and Gilly, thank you very much for your answers and assistance. Onward and forward. I will proceed to rebuild and replace.

Again thank you guys.

__________________

1976 280C
SLOWER DRIVERS KEEP TO THE RIGHT.
DRIVE RIGHT PASS LEFT