Initial thoughts are you have a engine displacement/cylinder mismatch. 6 carbs for 4 liters on the Ferrari and 3 for 3 liters here. So the chokes at 30 are too small becuase you need to pass more air for each cylinder now. Small chokes will pull the main jets in sooner due to their higher venturi effect. They will also reduce top end response but being an automatic this may not be as much of a concern as early/rich tip in. The idle jets are too small, again it's because each carb is working less on the 12 cylinder displacement. The inner bore size on an F11 jet is 1.5mm, M30's typically use an F8 or F9 jet which has a 2.0mm bore, so this jet is not big enough. I think the F23 is an emmissions carb jet. I suspect that you are using the idle mix screw a lot to compensate for all of this. And yes, I do believe the emulsion tubes are incorrect as you suspect.
Couple other things I need to know:
-what size your Aux venturi is - the piece that sits in front of and holds in the chokes - is it 4.5 or???
-remove the progression hole cover and shine a flashlight into the throat and take a picture of the little progression holes from above.
After confirming the above, I'd consider starting with this setup:
A set of drill jets from Pierce or Carbparts.eu, this will save you time and a lot of money
34mm or 32mm chokes (I have a set of 34mm chokes that I can send you to try - this stuff gets expensive)
45 F8 idle jets (can be drilled out to richen the fuel bore or lean out the air bleed)
120 main jets (also can be enlarged)
170 air correctors (also can be enlarged or just start with your 180's - not much difference)
F11 emulsion tubes, I may have a set of these I don't need anymore that you can have-I will check tonight
35 accel pump jet with a discharge valve TBD
The idea here is that you need to convert the internals set up for 6 carbs for 4 liters to 3 for 3 liters. I believe this is the main reason it's not running properly. And those Ferraris ran rich for max power.
