If that was a plug chop, I'd back 2 degrees out of the ignition advance and leave the main jets or maybe drop one size - and then get it on a dyno with EGA. If I pulled those out of a race bike at teh end of a high speed straight, I'd think I was getting close on the main jet.
What dd they come out of and how did you run the bike when you did that chop?
If that was a quiet run around the block it's lean. We need to know the conditions the bike was running at to make a guess at it.