I am attaching the NFL and College Football power rating excel spreadsheets I received from Sportrends. I believe the power rating are listed on their webstes for those of you who don't have the capability to run and update it.
The rules are the same as we had in basketball.
1. Never play double digit line games.
2. Pass games where the team laying points has a lower PR.
3. The team laying points must have at least a 1 point higher power rating.
4. The home team has a 3 point HFA which I believe is built into the spreadsheet.
5. There must be a 2 point overlay.
If someone can remember anything else or add filters be my guest.

morri1962 gave Formulawiz 10 SBR Point(s) for this post.
