Carb knowledge help needed
I am more curious about how and what the passages do and how I need to use the circuits for a better setup.
IMO the best introduction to the principles is the first chapters of Urich and Fisher's
Holley Carburetors and Manifolds. Any edition will do, no reason to pay for the latest edition with fuel injection, etc. Also the section on race tuning is useful in a practical way even though doesn't get into the details of the circuitry. In particular the sidebar on proper throttle to transition slot relationship is worth the price alone. (pp. 121-2 in the 1987 edition [Holley Part No. 36-73, HP Books])
The section is called
Special Procedures for Wild Camshafts
I've linked it above but the links to copyright material are often temporary.
Chrysler also explained the carburation circuits in several Master technician's reference booklets. Although the general ones are more oriented toward Carters, there's a lot of overlap with Holleys. There's also a couple specifically on the Holleys.
Master Technician Service Conference - Chrysler's Training for Mechanics
The pre-emissions ones from 1966 might be good to start with.
There's a lot of good info about the circuits on
Racing Fuel Systems forums. Just that its not all organized neatly.
Dig around in there, lots of good stuff.
here's a couple good ones to start with
AFR Relationship to Throttle Opening (Load)
Importance of Position of Idle Feed Restriction
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