Please Help Me with Colleges?

<p>Hi, I'm a senior from Southern California and I'm having some trouble in regards to applying for college. I'm not exactly sure of what I want to do as of now, so I'm on the fence on whether I should apply undeclared or declare a major (Bio and Comp Sci).
So far, I'm planning on applying to UCSD, UCLA, Cal, UCI, UCD, Cal Poly, and USC.
Thanks for reading this, and please post your opinions if you can!
Stats:
Weighted GPA: 4.11
Unweighted GPA: 3.71
SAT: Math 730, CR 620, Writing 690 (retaking Oct.)
SAT II:Biology M 710, Math 2 710, US History 750
Sophomore Yr.
Chinese 3/4 A/A
Spanish 5/6 A/A
Honors Chemistry B/B
AP Euro History A/A
AP Calc AB C/B
Honors Humanities A/A
Pre-Engineering A/A
Junior Yr
AP Biology B/A
AP Physics C: Mech B/A
AP Calc BC B/A
AP US Hist. A/A
AP English Lang. A/B
P.E.
ECs:
Member of my high school's FIRST Robotics Club for 4 yrs; Safety Lead
2 Yrs of NHS; VP(maybe, don't know if the club will be still here)
member of CSF
Secretary of Nat. History Bowl
3 Yrs member of QuizBowl
Volunteer at the local library
(want to be a volunteer at a hospital, but that starts November, when UC apps are due...so not sure I can put that)
Boy Scout, stopped after freshmen year
Other:
I come from a low-income family who will be a first generation college student. Will apply for scholarships</p>

<p>I think that it won’t matter. Admissions look at everybody equally. If they accept you but the major is impacted they will put you in the choice of your alternative major</p>