HeyDonnie, great hereing from you had a hard landing on my Veco Chief. Decided to build a new bottom cowl. Cleaned my Fox 35 Stunt it really needed it. Replaced the needle valve assembly. Was not getting my 4-2-4 break that I usually get. Also ran alcohaul in my tank got a little crud out of it. Let it set over nite. Green crap decided to fill it with MEK and let it set a few days. I may have to replace the tank. I use after run oil. But never thought about my fuel tank. AJ