Vocabulary for the SAT

hey, I'm currently studying for the new sat. I'm a fast reader and I'm good at time management and doing good (not bad) in answering questions (even though in some lines I don't know what half of the words mean, and when it comes to literature, strange words dominate the passage) also Im doing good at math and grammar questions (although I really don't know many grammar rules I just answer unconsciously, you know). yes that's my problem, vocabulary. and I've got a PDF of 3500 words which claim to be "basic" and "college-level" words, and I want to study that. what do you think? is it gonna help? Actually the question is which level of words do I need to learn and what is the level of new sat vocabularies. Thank you