Hello, I need to cap of the factory fuel supply line. Back at the tank with the Dorman fittining. I have fuel that has been coming out when I drive it. I have since been done install a few weeks. I have the fuel pump on the block. I disconnected line from pump to fuel cannister because of using Vulcan big line kit. But didn't plug the old pumps outlet. Could I be pulling a vacuum some how? Any help would be appreciated.Thanks,John

I would just cap it... If you can't find a rubber cap and a clamp you can clamp a short hose on and put a piece of dowel rod in the fuel line for a plug...

I'm not familiar with the exact placement... however, I'd suggest if a hose must be plugged, to use some non-porus material... a bolt, steel or brass pipe plug. I have a stash of plastic hole plugs accumulated over the years. Russ