I had some trouble with this same thing, it is not easy... two lines come from tank, one that is bigger goes to fuel filter then to fuel pump - up to carb.. hard line comes from carb down driver side of engine and goes all the back to rollover check-valve(in corner space behind rear tire) then to return port on tank... check this site out it might help if I haven't.. CM JEEP ADVENTURES UNDER THE HOOD
84 CJ7, frame up restoration. Body off an 80. 1"body lift, 2 1/2 suspention lift, and 1" shackles. 33X12.5X15 BFG's one piece moser axles in rear with 4.10's and ARB locker front and rear..