What are my chances?

Applying to:
UCLA
UC Berkeley
UC San Diego
UC Davis
Cal Poly San Luis Obispo
Cornell (possibly)
Two or three more privates.

I want to primarily apply under Computer Science.

ACT: 33 (I’m took it one more time but am awaiting my scores)
AP European History: 3
AP Chemistry: 4
AP Language: 4
AP United States History: 4
Chem Subject Test: 640
Math Level II Subject Test: 580 (I know these are bad)
Weighted GPA: 4.36
Class Rank: 4

Grades:
Junior -
AP Art History - A,A
AP Chemistry - A,A
AP Lang/Comp - A,A
AP US History - A,A
French 3 HP - A,A
Pre-Calculus - B,A

Senior - Taking AP Calc A/B, AP Bio, Physics, Econ/AP Govt, AP Lit/Comp, and AP Psych

Cal Poly GPA (includes 9-11th grades) capped at 8 honors points for 8 semesters of AP classes taken 10-11th?
Also calculate your MCA score for SLO (see post #52): http://talk.collegeconfidential.com/cal-poly-san-luis-obispo/1694769-confused-about-mca-score-p4.html

UC GPA? https://rogerhub.com/gpa-calculator-uc/

How are your extracurricular activities? I think your subject test scores are on the lower end but your grades and ACT are good. I think, depending on that, probably high match or low reach.

I calculated a MCA of 4243 which doesn’t really seem right since the average for engineering is so much higher. Unless I just overestimated myself. Even with my low math on the ACT, I don’t see how it would be so low.

GPA: CSU GPA: 4.591 - 2250
ACT: English: 35, Math: 27 - 1433.4
Coursework: 500
Extracurriculars: 60

What is the thing holding me back?