Holley Aluminum fuel cells come in a several variations for nearly every race application. They are offered in both flat bottom and rear sump variations to prevent fuel starvation under heavy acceleration. These fuel cells feature -10AN ORB fittings on the feed, return and vent ports, for high flow support and easy plumbing. They are made from 2.5mm thick 5052 TIG welded aluminum, with triangulated mounting tabs for added support and long-term reliability.