More of an even distribution, inlines sixes or eight cylinders with one carburetor in the center, tend to lean out the cylinders at the ends of the motor due to the long intake runners. Duel carburetors split the distances somewhat, triple carburetors even it out on six cylinders.
You have to size the carburetors ( CFM ) for the cubic inches they the are going on, at the rpm they are going to run at 90% of the time. In this case, size does matter!
