All Mustangs
Online
Here I cover the conversion of my 408W from an Edelbrock carburetor to a Mass-Flo electronic fuel injection system.
The next step was to temporarily route the fuel line from the pump, over the axle, and down the length of the floorboards. Make sure you leave plenty of clearance between the exhaust and the fuel lines.
I have subframe connectors installed in this car and decided to run the fuel line straight down on the inside of the frame rail connector. Using the supplied clips and rivets I attached it to the floor pan. The fuel filter was a bit of a predicament, as I didn't have enough of the 8AN line to run all the way to the engine compartment. I decided to mount it on the outside of the frame rail to allow for ease of access during filter element changes. It's a little more vulnerable out there, but I felt that due to the fact I only drive this car in good weather during the spring, summer, and fall this wouldn't be a serious issue. You can see in the picture that I ran the fuel line from the inside to the outside of the frame rail through the gap between rail and pan.
Next I drilled a hole through the frame rail and ran the line from the filter back to the inside of the frame rail, up into the engine bay staying tight to the toe pan and against the frame rail. Make sure you use rubber grommets anywhere you run the fuel line through any sheetmetal. Then I ran the line up and across the firewall to the drivers side fuel rail. The photo shows the connection to the fuel rail, although at the time I was running the lines I didn't have the intake or fuel rails installed yet. What I did was line up the fuel injector holes on the fuel rail with the nitrous bosses that are cast into the Performer RPM AirGap intake I was running. This enabled me to get a close approximation of how long the line would have to be.
