Is this the student we are talking about?
SAT 1420 with math 690?
Agree with polite person and recommend expanding the list, including some less reachy schools. He would need full coach support at Wash U and Brown for a chance of admission. Agree he should use tfrrs website to help target schools that could make sense. For engineering he might consider taking AP Calc BC rather than AP Stats senior year.
Does he have one year of fine arts (same discipline) for Cal Poly? High School Course Requirements | Cal Poly
Some schools he might check out include Union, CWRU, Stevens, RPI, Clark.