Hey Firefighter we have 2 pit gueens. they tweak on the engines all morning and when they think they have got them runing they taxi out to take off and all of a sudden their engine dies before they get 20 Ft up the runway.We finally had to move these two individuals away from our start up area do to the noise they were creating and safety hazzard. I know what eveybody is thinking.Everybody in the club has tried to help, but these two just can't leave well enuogh alone.Infact One member that helped them on numerous accassions finally got there engines runing perfectly,had both of them flying, engines runing with outstanding reliability ,then took some CA and glued there needle valves and told them both there. yaaa goooo Happy Flying!!!!