first of all, UC weight pretty heavily on GPA, SAT I and II.
But your extracurricular still count.
I had a 4.8 GPA, 2390 SAT I, 800 SAT Math level 2, 800 SAT Chemistry, 800 SAT Chinese, 790 SAT U.S. History, 800 SAT Biology.
I was also officer of 6 clubs and presidents for 2. I won four awards...