Retake the ACT? My goal is UT Austin Computer Science.

I recently got a 30 on my ACT.

(My break down was):
35 Math
33 Reading
25 Writing
26 Science

My goal is UT Austin Computer Science, and I was wondering if this would be a good enough score?
Here are my stats: http://talk.collegeconfidential.com/university-texas-austin/1951159-university-of-texas-at-austin-computer-science-chances.html#latest

If not, then what should I improve on?

I thonk you are fine depending on gpa 3.5 or above?

You’ll be a very long shot to get into UT at all with this, never mind for Comps Sci.