I am doggone sure that:
The 194 came with the "middle size" of the 5 sizes of B/BC/BV carb.
1-11/32" venturi and 1-9/16" throttle.
I've worked on many 194s, all of them I pulled off were this size, also the size listed in the manual, and the numbers jive.
Now on to what I *THINK* I know. Comments Welcome!!!
As I said, I have detected 5 sizes of B/BC/BV carb.
I am guessing / calculating their CFM and provide it here at 1.5" Hg (the 4bbl style measurement).
V = 1-1/16" T=1-1/2"
Use: 1959-62 truck "economy option"
V = 1-7/32" T=1-1/2"
Use: 216cid, most
3. Midsize (most common swap meet carb)
V = 1-11/32" T=1-9/16"
Use: 1952-53pglide engine, 1954-56 car, 194/120hp, 230/140hp
V = 1-15/32" T=1-11/16"
Use: 1954-63 261cid
5. Big Jug
V = 1-9/16" T=1-3/4"
Use: 230/155"HiPerf" and 292
AFAIK all the 194s used the "Midsize" carb.
I have one of the "Small" #1 economy carbs. It runs smooth and good but it is a dog on the Gtech, I feel like sticking my foot out the door and pushing the car to make it go faster. Tried re-jetting, not much better.
For your setup I'd just try two of the Midsize carbs. These are the easiest to find and actually IMO about right in CFM.
My rule for CFM (at 1.5" Hg) is "Double your horsepower" if the car is fairly light and has good gearing. Your 194 with a 2x1v intake would be near 140hp. Two Midsize BV's would give 2x140cfm, almost exactly right.