Nitrous on a 340 100 shot

TT5.9mag said
The plugs look good after the nitrous hit. The first two pics look like you still have a degree of timing to take out. After driving it and sitting in traffic the plugs don’t look so great. Trim some idle fuel out of it. What afr are you idling at on your wideband?

Trying to save fuel in high gear low rpm it was 11.7-12 ish..... it idles at 12.5-12.8 now that I pulled more timing out of the top but added 5 degrees on the bottom. Now I have it set to 16*-31* and I'll try that and see how it is wirh nitrous. While I was timing that in I idled it for 10 minutes ish and the plug looks a bit better.