I realize heat rises but the reason I put the fuel line on the fenderwell is I did not want it low where it was close to the header tubes.I do have a regulator with a return line port so I have to install a return line port (nipple) on the tank or filler neck to put one on it which I most likely will do. I also plan to get a wood spacer to replace the phenolic one I use now. And of course I plan to insulate the fuel line under the hood real well. Its funny as I never thought I would have any problems like this but it seems the government dont care about our old muscle cars and would prefer to see us get them all off the street. Ron