Positively not a Holley 2300. I'm with Geezer#99, that's a Stromberg WW 2 barrel that could have come off one of a variety of rigs and they were run on GMC trucks.
This is a Holley 2300 which is just the front half of a Holley Four barrel.

This Ebay add has a Stromberg WW that is actually for a GMC
https://www.ebay.com/itm/17504487365...yABEgK2cvD_BwE
Image of Stromberg WW
They put those carbs on a ton of cars and trucks over the years and they are a pretty good carb that is usually easy to rebuild.
The brighter light just came on and I'd just about bet that is the carb off a Studebaker Golden Hawk that ran a McCulloch supercharger. and research says it blew though a Stromberg WW carb. My guess is that someone robbed the blower and carb off a Studebaker.
Link to the carb for a Golden Hawk on Ebay with carb numbers.
https://www.ebay.com/itm/393496048961