I have a 585 Nos engine(alpha N mode) with the sequential FAST Injection.Ive been told that you shouldnt run in closed loop with nos.But Ive heard that you can.Ive heard that a lot of the promod guys are spraying lots of nitrous and setting the a/f ratio at a target of 9.2:1.You would get near perfect plug readings every pass.Anyone else try or here of this?