RE: nitromethane
Platero,
Please read [link=http://www.spmrc.com/tips/Facts-About-Fuel-3.html]this article[/link], by PowerMaster's Don Nix.
You can try getting nitro from [link=http://www.worldwideracingfuels.com/catalog_c30758.html]World Wide Racing Fuels[/link], or you can do a search for other sources.