NX wet kit

I'll bump this for you.
Someone needs to answer you.
If no one here does go to mustangworld.com and post it there I know a couple of guys there that would know the answer to your question.

I can't comment on the use of N2O since I run a S/C, but ask this in the power adder section at www.modulardepot.com too. Alot of folks are running spray over there......

What kind of CAI do you have. Some people running BBK, and MAC CAI are running rich due to the MAF meter being located right after the elbow. Wet kits also require more tuning and more fuel. What octane are you running. If you have access to 93 octane I'd run nothing less with 100 wet shot. You might look into a switch chip with a custom tune for N/A and when you are running nitrous, but I'd baseline N/A to see how the A/F ratio runs. Also make sure your bottle pressure stays above 900. You need all the bells and whistles when running a wet system to make sure your running efficiently or your engine won't last long.