GPA CC: 3.1
GPA 4Y: 3.9(ish)
The moral of the story, is that with taking several prereq's at the CC and doing mediocre at best (got a C+ in second semester gen chem), I transferred to a 4 year and pulled it up to above a 3.6 (3.5 science).
Anything is possible, but it's recommended not to take prerequisites at a CC.