Missing at 2200 rpm???

All right. Made it over to the carb guy this afternoon. He adjusted the floats, unhooked and capped the vacuum advance on the dist, added a 1" phenolic spacer, and played with the timing and it seems to be running great now. However, I think he got a little greedy with the timing and it pings a little bit so I need to turn the dist a little. I worked 58 hours this week and cant for the life of me figure out which way to turn the dist to get the ping to go away. Pretty sad huh? I havent been this mentally drained in a long time!