Got my fuel fittings in so I installed the fuel selector valve and hoses to the firewall. Drilled a 7/16 hole in firewall and installed a number 4AN bulkhead fitting. Cut hoses to size and installed on number 4AN barbed fittings. Still waiting on some herbie clamps for the hose. Riveted fuel selector and brace in place. I was planning to use 3/8 line and stepping it down to the required 1/4 just prior to the firewall but it worked out better stepping it down to 1/4 at the fuel selector.