For the fuel system, we mounted a Ford E2000 external fuel pump to the frame near the tank, then used a Wix No. 3737 fuel filter from a Corvette that has a built-in regulator to bring the E2000’s 80-plus psi down to a 4.0L-friendly 45 psi. We used high-pressure rubber hose between the pump and the filter/regulator, and we used low-pressure hose for the return line back to the tank. We plumbed both to the original pickup and return ports on the tank. We modified the stock 5/16-inch steel fuel line to accept inverted flare fittings on both ends and then ran a second short length of high-pressure rubber line between the frame and the engine.