Happy to see CRG website is up and running. I just replaced my fuel line from tank to under the hood on 1969 z28. I just happened to have my front fenders off due to cleaning the frame. But, that really would not have made a difference in the installation. The car had original fuel line installed. The original owner cut a piece out in the back for a possible electric fuel pump install and had cut a piece off the front for what I think was for an electric fuel line installation. Don't know what in what order that happened. Anyhow, I removed the fuel line by pushing it forward as far as I could past the rear axle then I pulled it out to the side. I purchased replacement fuel line from InLine tube. Made some slight bend adjustments so that it matched the original. I remove the parking brake cable at the right rear. I then installed the line in reverse of how I removed the original line. Pushed in at the bottom into the engine compartment as far as i could go. Then I moved the line to be parallel with under the body. I then pushed towards the fuel tank and pulling from the front. I made some slight bends during the install, but reversed the bends when basically all in place. Anyhow, it was easier than I expected. Hope this helps. Good luck.
