Well, you could look down the page a bit at the "(Qbank + First Aid) X 7 days = 215" thread to get an idea. Obviously though this will vary a lot with your current basic science knowledge and how much time you actually spend studying. If you have 8 weeks to memorize all of FA and carefully review all the Qbank explanations, you'll probably do a lot better than if you plan on doing it all in 1 week like the other poster did. So it depends on a lot of variables--where you're at now, how much time you have to prepare, and how well you make use of FA and Qbank in the time you have. If you're aiming for >240, you'll probably want to incorporate some other books/qbanks into your prep, but who knows.