With top feed & return oil lines. CNC machined from billet 6061-T651 aluminum, with a clean custom appearance. The Jims Flow-Pro 1 oil pump increases oil scavenging (return) when compared with stock pumps. Less oil dragging on the flywheels is more power to the engine. All four oil pump feed and return gears are individually matched to each oil pump body, creating a maximum efficiency pump.