I like to use a 3 line fuel system & a fuel dot that mounts in the side of the cowl. You simply pull the fill line out of the fuel dot a couple of inches, fill the tank then return the fuel line back into the fuel dot. It is a very clean looking installation & it is problem free. I use them on all my cowled aircraft. Here is a link to a fuel dot.


http://www.horizonhobby.com/Products...?ProdID=HAN115

Note: I don't use the T, I use a 3 line system so the fill line goes straight to the tank. I put a clunk on this line too so that it can be used for emptying the tank as well as filling it. I hope this helps.