Russell Performance Red/Blue -8 AN Male 37 Degree to 1/2in Aluminum Tube AC & PS Eliminator kit The billet cores for these

The billet cores for these cams are proprietary and made in house at GSC

2011-2013 Ford F250 +18 HP +17 LB/FT

If you don't want to run a hose insert

As a side note

F-12K / R-6K

Russell Performance Red/Blue -8 AN Male 37 Degree to 1/2in Aluminum Tube AC & PS Eliminator kit The billet cores for theseRussell Fuel line adapters can connect to 3 8" or 1 2" aluminum tube to 6 or 8 adapters. These fuel line adapters feature a unique crimp design which now eliminates tube flaring. Available in male or female ends for 3 8" or 1 2" tubing these adapters are offered in an anodized Red Blue finish, or Black Silver finish to complete your customized look.