Last year we pitted next a injected rail that did some thing called dry firing a nos system it blew the hat off 100ft in the air and mangled a sheet metal mani Scared the pizz out me , the blast plate that was in the hat blew out and flew outa sight, It was pure luck that no one got cut up or killed, any body ever heard to dry firing? it was done with the engine running and was the 1st stage outa 3 that failed