too rich?

Not really sure if I'll be running way too rich or not, but I was looking at my air/fuel from the dyno, and I notice that at one point it, for a sec, it drops to about 11.9 and the rest of the time it is around 12.5 before I spray. Is it still safe for me to be spraying it? This is a NX Wet Kit.

Yes just keep it safe on spray, 12.5 A/F is okay N/A could go a bit leaner, but once you spray you'll have fuel coming in anyways.

was planning on going with a 75 shot for now, but wanted to at least go with 100