Backfire after spraying
I would try it, and hope that you have no lean cylinders.
Unless somebody turned DFCO off in your tune, then it's there and functioning fine. DFCO turns your fuel injectors off, not your spark.
If you decelerate in gear, then DFCO will engage. The fuel burning up in your exhaust is left over from your wet N2O system, not your injectors.
During DFCO activation your injectors will deliver no fuel at all, unless they are leaking.
If you shift to neutral at the end of your run and coast, then DFCO does not engage, and often the over-rich condition that the fuel puddling causes will kill your engine.

I don't know if it has anything to do with it, but I will only be spraying a 100 shot. So maybe less fuel/n2o being sprayed into the intake so no puddle maybe?
I actually have a video clip of it....
from :32-:36 seconds you can hear it if you turn the volume up and at exactly :36 you can see my center mount light up from the flames.
http://www.youtube.com/watch?v=4Phdk...ure=plpp_video
never really worried about it as pretty much every nitrous car I have been around (mostly c6's) have done it.



