There have been many posts about bending brass tubing, and in the past, I have mentioned replacing it with copper tubing (available from most Auto Parts stores for about 50 cents a foot).

Well, a picture is worth a thousand words so here goes...

To prove my point, Last night I wrapped a piece of 1/8" copper tubing around a 5/23" landing gear wire just to show you how well this stuff bends.

I didn't do anything special; no heat, no filling with sand, or weed wacker line. I just held the gear wire in a vice, and wrapped the tubing around it.
(And yes, fuel will still flow through it)