Fuel lines 6-K-1-57 are supposed to be installed in centerconsol, one in each side. But on right side there will be a conflict with the lower part of control-stick. I clamped both far to left in torq-tube opening in central spar, and with one clamp in fuselage bottom. Hose SF 520 fits well on left side but on right side I have to use a longer hose. I installed pipes 6-K-1-56, but hole on left side has to be enlarged for grommet. Different size on left and right, strange. Tubes clamped to Z angle. Holes in side skins are not in right position for fueltubes. I will drill new holes when wings are ready for mounting.