For anyone else searching this in the future. I found a Van's document here
that outlines the parts and steps to install this on the -14.
After much searching the hose part number is EA Hose H175 but is referred to on the -14 install as FF-00008. You can also get the clamps which are part number FF-00010. The hose is 1/4" fuel line like Scott mentioned and appears to be Gates PVC/EEC
rated to +257 degrees Fahrenheit.