Threshold for the SAT, ACT, and SAT II

Hello,

Does anybody know the “threshold” for the SAT, ACT, and SAT II?
(I’m talking about Ivy League and other Top Notch Colleges)

I scored a 780 on SAT II Math Level 2 as a sophomore, and I was wondering if I should retake it or not…
Should I retake it?

Don’t retake. Any score >700 is good for SAT II.