I broke into the single line I had in place which went from the fuel selector to the firewall passthrough in order to install my Floscan fuel meter. It is said to work best when mounted horizontally away from turbulence (the kind caused by pumps). I cut down an old brake pedal, opened up the angle to produce a level shelf, and mounted the flow meter to it. Now I just need to order an inline fuel filter and fittings to go between the selector and this meter to protect it from debris.
Floscan fuel meter mounted horizontally on the passenger side of the firewall
Very fitting that I used an old brake pedal for my bracket