A great thread for the WH is [link=http://www.rcuniverse.com/forum/m_3643360/tm.htm]THIS[/link] one. The WH does have problems and most if not all have been addressed in this thread. ( I must warn you though...it's almost 300 pgs long.)As for the super pooper. It's got bad sealing issues. you need to remove it from the truck and check it for air leaks. after you get it all sealed up it should do a lot better.

If you don't know how to check for air leaks... It's easy. After you get it out of the truck, all you need to do is make up a soapy water solution. (A couple drops of dish soap in a couple ounces of water.) Place a length of clean fuel hose on the fuel inlet nipple. hold one finger over the carburetor bore and a second over the exhaust port at the back of the engine.While blowing into the hose brush the soapy water over the entire engine. any bobbles forming on the engine indicates an air leak that needs to be sealed. use rtv orange silicone to seal it. It ( the orange) doesn't etch the aluminum.

HTH

Jim