An agricultural air cart assembly includes an agricultural air cart. The agricultural air cart includes independently controllable, first and second product metering systems that regulate the rates at which product flows from a storage compartment into corresponding first and second distribution lines. Independently controllable, rotatable fans are operatively connected to corresponding first and second distribution lines and are configured to generate optimized air flows in the first and second distribution lines which entrain and carry the product downstream toward corresponding row units at balanced pressures.
