It's important to secure the fuel lines to the frame to reduce vibration and to keep them out of harm's way. Kugel Komponents' stainless line clamps are a unique and good-looking way to do this. Using their double clamps whenever possible helps keep things clean when plumbing a return-style fuel system; Kugel has then in many sizes. One before and after the Aeromotive fuel filter will keep it from going anywhere once everything is tightened down. Also, don't forget antiseize on the provided 10-32 stainless button head Allens. | 
As fate would have it, the best spot I found to mount the Aeromotive 13101 adjustable fuel pressure regulator was on the passenger side firewall, just behind the motor. This gave the braided hose that would connect to it a smooth path of travel from the frame, and also keep the lines away from hot exhaust pipes. Mounting the regulator in the engine bay, as opposed to down on the frame, makes the fuel return line longer. This means more fuel will be circulating in the lines instead of sitting under idling conditions and run the risk of vapor lock, which is still possible with an electric fuel pump and in an EFI system. The horizontal ports on the regulator are IN and OUT while the port on the bottom is for the return. | 
Before cutting and installing the last few pieces of braided hose and with the regulator mounted, I wanted to install the last static fitting that will terminate the fuel line into the stock Ford fuel rails on the motor. By the time you read this, Aeromotive will have their own Ford fuel rail to -8AN adapter fitting in production. This will be part of their kit, but until then, I had to order this piece from UPR Products. |
I bent a piece of the stainless hard line to turn the corner behind the motor from the fuel rail inlet and installed tube nuts and tube sleeves before flaring both sides. From the motor to the regulator on the firewall I needed to run a short piece of braided hose in case the cab were to move independently from the frame or motor. On the hard line behind the motor, I used a male-to-male union and a straight -8AN to hose fitting that will connect to another -8AN to hose fitting on the regulator. | 
With the piece of hose installed and everything looking visually square to one another, I connected the hard line to the fuel rail using the AN wrench. | 
For a more subdued look on braided stainless hose, you can cover it with heat shrink usually used for electrical work. This can be found at electrical supply stores in various diameters and lengths. It slips over, and with the use of a heat gun, shrinks up to a skin-tight fit. I used 3/4-inch heat shrink over the -8 hose. |