Please forgive me if i might sound like a noob, But my gn is running fine and all but when it's in WOT it smokes white smoke out of the exhaust even when my alky is turned off i thought that might be the problem but it wasn't. Also i checked for a head gasket and that didn't seem to be the problem, Any ideas of what it is? also the smell of extra fuel when this happens at idle and i rev up