If its the line that attaches to the fuel drian valve, there are 2 orings that seal it. Just did mine yesterday,take the 4 torx screws out and the valve will come off. Ford wanted $30 -$40 for an assortment of orings, I orderd mine from Pure Diesel Power for $17 and had them in about 3 days.
You might check your map sensor line, mine was left off after I changed my stock intakes to 3" intakes and run hard till a certain rpm and then fell on its
face. Hooked it back up and it will pull 30lbs of boost.
Thats a cool setup! Im looking into the same setup with stage II injectors and a 17* pump. How was Beans to deal with? Im looking to deal with them also.