Penguin, need your help.

[MAYHEM45]

The deadline is anytime before 1pm sunday. Here are the lines:

1. Atlanta +5.0 S Carolina -5.0 N
2. Baltimore +3.0 I Tampa Bay -3.0 F
3. Buffalo +8.5 A New England -8.5 L
4. Cincinnati +4.5 B Kansas City -4.5 C
5. New Orleans +3.0 E Cleveland -3.0 O
6. Philadelphia -4.5 T Houston +4.5 M

I have to pick 6 letters, S or N, I or F, and so on.