White Labs lists it as "Medium" 5-10%. No harm starting with it and then adding another strain if needed, especially because 002 is a low attenuator and a high flocculator (probably worth rousing to help it keep working). I really like it, but I’ve never used it in a strong beer.
I use the Wyeast equivalent and recently had it plow through a 9.3% IIPA with no problem. It was done fermenting and cleaning up in 7 days.
But on a beer that big you'll probably want at least 10-20% sugar to make sure it's dry enough. Or do what Oldsock is saying and pitch another strain. I wouldn't wait until the first strain is done to pitch the second - maybe pitch it when the gravity has been reduced by 50-60%