I agree with the guidance counselor. Unless your SAT/ACT puts you ahead of most other applicants with similar socioeconomic backgrounds, it can only hurt. My daughter submitted a 35 ACT superscore (that’s what NU looks at) with a 36 in her intended major. Still rejected, even with excellent grades, ECs, etc. So I just don’t see how a 1490 can do anything but hurt your chances.