Boston U ACT/SAT to even out my GPA?

<p>What ACT or SAT score would I need for a good shot at Boston U?
Right now my GPA is a 3.45… low I know. I have taken hard classes, such as AP chemistry, AP Calculus BC, CIS Physics, etc, and I am going PSEO. I’m a senior, so I can’t really raise my GPA too much, but I could improve my test scores.
So what do I need?</p>