If any incredibly small, but probably not. Those lines just do not draw that much action. People bet games, sides and totals. Then they will bet team futures, like Seattle at 23-1. I personally have never bet a AFC/NFC line. I would say the combined action of all of the AFC/NFC will be less than 1% of the action on the Super Bowl. D2 has a pretty good topic on why the line is what it is.
Best Wishes...OF