Throw a 2" paddle on it and you'll still have fun as long as the thing runs sweet. You can get a track pretty cheap on here if you look. If you riding with long trackers with 700 or larger, your gonna feel like the little brother that wants to play with the bigger boys, but just isn't big enough yet.
I rode at Tog for a few years with a guy that had a stock F7. He obviously wasn't at the front of the pack, but he was always right behind us. He went nearly everywhere we went with 151's. But, he was an agile rider and not afraid to keep it pinned all day.
I am from the jackson and moran. when i worked at togwotee and raced i rode a 121 for years. If you run the race track your fine might not get every where you want to but you will get around no problem.