No, it doesn't depend....
It is not what I say, it is what the physics says.....
[1] And it is not just Mike Urich [ who was NOT wrong ] who is saying it...
[2] "A reduction in AB size reduces vacuum signal requirements & fuel flow is more easily initiated". Carter Carb book by Dave Emanuel, p.26.
[3] Decreasing the bleed size increases the pressure drop across the main jet, so more fuel is pulled through the main system, resulting in a richer mixture." Rochester Carburetors by Doug Roe, p. 10.
[4] Larger main jets richen the mixture, while larger MABs weaken it." Carburetor Performance Malcom Elston p.101
What Mattax & RB are getting confused with is when the system actually starts & what happens once it has started. Two different things.
For those following, a simple test will prove what I am saying. Put a straw in a glass of water & suck on it. Using a pin, put a tiny hole in the straw about the water. You will now have to suck a bit harder to get the water into your mouth. Now enlarge the hole considerably; you will have to suck a LOT harder to get the water into your mouth.
