The header tank heeded 2 hard points installed for the inflow from the left and right wing fuel tanks. I used T88 and fiber for the bottom structural adhesive and then mixed up resin with fiber and flox for the out side taper filler. I then laded a 2 bid lay-up to set the points in place for good.
Top of tank from left to right! Left vent tube connection from left fuel tank under that is the low fuel warning sender. Center vent to atmospheres presser and air. Right side is vent to right fuel tank. Bottom left to right fuel from left fuel tank. Center is ½ “fuel outlet to engine. Right side is the right fuel inflow from right tank.