Last summer I picked-up a box of 8 Holley carbs at an estate sale ($30) 6 of which were in various stages of disassembly, with 4 extra fuel bowls, but 3 missing throttle blades.

5 are single pump 4-bbls, and I'm sure the 3 2-bbls are mopar six-pack carbs. The lady running the sale said her dad was a Dodge/Plymouth muscle car fanatic and thought maybe they were muscle car carbs that had just worn-out.

2 of the carbs were universal models, a 1850-3 600cfm , and a 3310-2 750cfm that's now on my van (pictured below). I just can't find any of the other list numbers in any sources.




Does anyone know of a better index than the one on Holley's site?

Also, does anybody know how to decipher the date codes?
The date & list codes are shown below.

4-bbl carbs:
date 1389
list-1850-3

date 1375
list-3310-2

date 3149
list-4366

date 3125
list-4367

date 3348
list-7009-1

2-bbl carbs:
date 3009
list-4375

date 3249
list-4382 (middle carb)

date 3249
list-4383

ANY help is very much APPRECIATED !!