This special fabricated tube mounts to the cam towers on the 2.0L Ford SOHC "Pinto" engine. It does a critical job, carrying and distributing oil to the valve train.
The cam oiling tube should be checked frequently for cracking, especially in high-RPM use (FF2000 / Sports 2000 racing) or in high-mileage engines. Replacing the tube is much cheaper than replacing the cam, cam bearings, cam followers, valve guides, valve springs...