"reason" ??Thanks, you are a wealth of knowledge on these.
Do you know the reason why the 750 Edelbrock is jetted 113/107 and the 800 is 113/101? Seems lean for a 800. Do this have to due to the booster/venture being bigger on the 800?
I have no idea why Edelbrock carburetors are calibrated the way they are. There doesn't seem to be much reasoning involved in calibrations in the Edelbrock AFB clones. Not much "reason" involved if whoever is the "engineer" in charge of calibration expects the secondary metering cluster to have A/F anything but engine damaging lean with .073" main air bleed and the main well tube restricted with a .073" orifice in the tip.
Skilled in the art or not, everybody who works on carburetors is extremely fortunate gasoline is flammable over a wide A/F range.
Unfortunate for those not so skilled in the art, for a particular engine to run as good as it can in each specific condition of speed and load, the A/F range is very narrow in each specific condition, idle, cruise, light acceleration, heavy acceleration, WOT, each has a different specific A/F requirement for least fuel consumption and best power. But hey, if fuel gets in the engine somehow and the ignition is hot enough, soot or not, it will more or less burn.
If there was no such thing as CD ignition, there wouldn't be as many people who think they are carburetor tuners.