Hi Bob, this is how I done mine on my 6A.
Fuel pumps on the floor boards, pressure side going through firewall on right side, return line on the left. There is a cover for the fuel pumps.
90 degree bulkhead fitting, short line to fuel filter, then line up to fuel injector.
Fuel line on left running down to Pressure Regulator mounted on the firewall.
Fuel pressure regulator mounted on the firewall, short solid stainless steel line from regulator to 90 degree bulkhead fitting.
Hope this helps, Terry.