NU guy here, yup I got above 170 too. I have a Singaporean friend in HLS who had a 175+. It's pretty much a prerequisite to get 170+ at least if you want a good shot at a T14 school, since our non-US college GPAs aren't factored in as part of the admissions process (thank goodness for that given my super low NUS gpa).

About the LSAT, unfortunately I've given all my books and materials away, else I'd be glad to give em to you. I highly recommend PowerScore books (textbooks can be borrowed from NLB, workbooks have to be bought), as well as 7Sage (it's an online prep resource with lotsa free videos) when you're studying!