SAT subject test for BC, USC

Is SAT(new) Math 2 670 a good score to send to Boston College, or University of Southern California as an optional score?
I’m not required but I’m allowed to send SAT subject score if I want to.

If sending in your score is optional, I wouldn’t send anything in thats less than 700. The score wouldn’t hurt you, but I’m not sure it would help you at all.