need some advice, running 3/8" fuel line, how to run, what to use

There is a type of brake/fuel line that bends easy, doesn't kink and doesn't rust. It is called Cunifer. Google it, you can buy it at most auto parts stores. This stuff works great. Very nice if you are making custom stuff.

I checked out Cunifer. I think that's what my 5/15 brakes are bent out of. Only $129 for a 25 ft roll on line. I think I found it locally and they want about $5 to $6 a foot.