SFT, the Holley carb you have is an orphan. It's a 40/41 type carb which doesn't have removeable float bowls as you can see. The top comes off instead. Holley made it around 1990, supposedly patterned off a carb they built for Motorcraft although I am not sure on that. When Holley rediscovereds its High Performance roots they dropped the line.
I believe it uses regular Holley jets.

If you want to see something similar in a regular Holley, the 6210, 6211, 6212 carbs are spreadbores.

R.