My UW GPA is a 3.9 for those wondering. My latest SAT was the upper 1300s.
If you are looking at Ivies, you should have 3.9 UW with almost all AP classes and several AP exams with good scores.
As I indicated, if you have all that, then I would recommend getting prep books and working on SAT IIs.
I would recommend on studying for the SAT IIs anyway, as they are low compared to the SAT Is. I would need morei information to know what level of school you can get into. You should be able to get into somewhere decent with you current SAT Is though.