Here's a couple of pics of my fuel control panel.
This first one shows an overview of the console with the lowest switch panel which is for fuel with the 2 boost (Facet) pumps on the left and the 2 HP injection pumps on the right. The knob in the middle is for the mixture control. I used my own potentiometer and ran the wires back to the control panel for the EC2. After start and pre-flight, this is the only control from that panel that may be needed to be accessed for any tweeks. Even that if I'm properly tuned should need to be touched
https://photos.app.goo.gl/1YMVyxq9eRlqSQWG2This one shows both of the main selector valves in the "off" position and the crossover valve closed.
This one shows under the the console with everything crammed in there. Some of the tubing is covered with black split loom protective sheath, normally used for protecting wires. Way back when, I thought it would be a good idea for some reason. I wouldn't do it now, but it's not hurting anything so I'll just leave it. But I figured I should point it out for clarification.