As others have said, carbs carbs carbs. Carbs are what run you. You just need a little bit of protein, enough so that as a meat eater you certainly don't need to go out of your way to find it.
More carbs = better workouts = more training load = more improvements. Eat your meat after the workout if you wish.
Try this book if you're interested in more info:
http://www.amazon.com/Racing-Weight-...6405148&sr=8-1
Sports nutrition research is constantly evolving, and it seems what we "knew" in the 1980s and 1990s isn't all turning out to be as cut and dried as it first appeared.