Just received my kit today. I have the non-dampened version. Although the kit comes with an email with install directions, the images in the email are difficult to reference b/c they are taken so close up. I'm not positive which way the lines go and which goes on top.Update
Here is how the lines are run, and shows how the regulator is bolted on to the metal bracket. Please make sure you remove the plastic bracket (which is clipped onto the metal bracket) which originally held the feed / return / and regulator assembly.
The kit has two lines. One with a dampener and bracket and one that's just a plain line. Is it correct to say that the plain line goes on top of the dampened line? I see 3 barbs on the firewall and fuel rail. Looks like this kit installs on the top and bottom barbs, leaving the middle line alone.