RE: Thunderboats
Griz, if you go to the Thunderboat registry over on JRCBD they list the maker of the hulls on most of them. There are a bunch of thunderboat manufacturers now. It's the hot class at the moment. As for the engines, I believe they have to be stone stock, no mods at all other than a 257 carb to be legal in the class. Of course if you just run for fun you can do whatever you want to the engine. Doug