Hi-Volume Oil Pump

[Bruskie]

it merely replaces the tube from the valve cover to the block

 

[MikeK]

. . . Can anyone decipher what the plumbing in the attached picture would accomplish (this is Don Ferrara's A motor, circa 1943)

The four fittings just above the oil pan tray ridge will provide a direct nozzle "squirt" into the con-rod dippers. This will allow positive oiling beyond the RPM point where windage and/or high sideways oval track G's would empty the dipper tray. This is really an excellent alternative to a cross-drilled crank.