fuel hose

  1. L

    2003 fuel hose

    Hi u’ol. Currently working on a 2003 Stang. It was a V6 but a Mach1 engine is going in. Both engines have the same hose that attaches to the fuel rail. I’m including a photo for reference. I can’t find what the silver round thing in the red circle is and also would like to know what it does...