Earl's new weld-in mounting rings allow the use of modern in-tank EFI fuel modules in custom or modified fuel tanks. The rings accommodate most late model GM, Mopar and Ford factory fuel modules which have been standardized to a common size with a thin 6" diameter hat at the top of the fuel module. Users can choose from aluminum, steel or stainless steel mounting rings for easy welding. For more information, visit holley.com or call 866-464-6553. (Content courtesy of Holley/Earl's)