are my SAT subjects good enough?

<p>800 - math 2 (junior year)
760 - bio M (freshman year)
770 - us history (junior year)
730 - literature (junior year)</p>

<p>I've taken all these tests once and am a strong applicant in most/all other areas.
Applying to very selective schools.</p>

<p>Does it matter what year I took it?
Is it worth it to retake literature senior fall?</p>