A video would be a huge help. If you are rotating your wrist like the football exercise, there is no reason why you shouldn't be able to just do the same motion faster to get more revs. What I would recommend doing is, try to focus on your follow through. You want to lift up on the ball as you are releasing it. This creates an upward motion as the ball is coming off your fingers and will result in more revolutions. Norm Duke is an excellent person to watch, because his arm motion is pretty easy to see the difference in speed. He has a fast upward motion at the release point, even though his arm speed the rest of the time isn't especially fast.
Another small trick to getting more side turn in to move your pinky finger against your ring finger. If you finger is already there, you can curl your pinky, so the top of your nail is on the coverstock of the ball. The pinky finger can get in the way of side turn, and cause you to get more forward roll than you want. I hope all this helps a little bit. Definately post a video when you get a chance though. It makes it a lot easier for us to diagnose the problem.
Bookmarks