I am not using the header tank in my 360 and have installed 1/4" od tubing as the vent for each wing tank. My old SB manual says nothing about fuel vent size even with the header and what published updates there are for the extended bay don't have a size listed either.  Is this big enough dia. for pulling fuel straight from the wings or should it be larger? What have others done.

Eric Demaray
360 SB