I started the day by drilling the fuel flow tranducer retaining bolt holes in the mount that I fabricated and then riveting on anchor nuts. Following this I completed fabricating the AN fitting mounting blocks for the firewall pass through for the fuel lines. Next I drilled and bolted the mounting blocks to the firewall. Finally I installed the AN fittings on the right hand mounting block and fabricated and installed the fuel line upstream of the fuel flow transducer.