I think a previous poster said it best: if you're looking at the top 14 schools a 166 won't kill your application. The bottom 14 still are a very real possibility, assuming your gpa is around a 3.6ish. The 4-10 schools might be harder, but a 166 still wont kill you. Here you'd have to bring a really good gpa, or some decent ECs, WE, etc. The top 3 or 4 probably become a reach with that score, even with a 4.0ish gpa, ECs and WEs.
that having been said, the lsat is approx 50% of the application; more or less depending on the school. some schools are notorious for being GPA-heavy, and others for being LSAt whores.