Holley/Demon Carb stumble

k so is there air or fuel coming out of the lower holes number 22?


Both. Fuel is coming up from the main jet and air from the main bleed is drawn in and then added to the fuel in the emulsion well. That's why size and placement of emulsion makes a difference.

I have a couple of cutaway metering blocks out in the shop. I'll see if I can dig them out in the morning and take some pictures. As long as the wild fire doesn't make me evacuate tonight.