Nitrous on a 340 100 shot

I will dial it back another degree of timing and try a colder plug aswell and see if the results change much. Right now I'm at 33* and my best tune was 35* so I may be a little to high. Just didn't want to loose much power when NA but I suppose that's the tradeoff.
If you get an ignition controller that yanks the timing only when the n2o is activated you can have your cake and eat it too.