Nitrous on a 340 100 shot
If you are going to do that tuning stuff, get a pin gauge set to measure what is in the carb now, so adjustments can be made based on what you see now.
It is an exercise, but, it makes a huge difference when you get it sorted out and right.
Pin Gauge set, 61-80 drill set, 1-60 drill set, brass/taps and you are off and running.
One of the best emulsions in a carb was the original 3310 style vacuum carbs. Someone started making metering blocks with 4 and 5 emulsions and industry "Monkey see/monkey do" nonsense started and the pooch began to get screwed.