SAT vs. ACT Score

SAT: 640 Critical Reading, 700 Math- 1340 Overall
ACT: 33 English, 30 Math, 25 Reading, 26 Science- 29 Overall

So far I have only submitted my SAT score to all my colleges, but do you think I should send my ACT score as well? My SAT is slightly better than my ACT score if you do the conversion, but not by that much…

Depends on your target schools and how competitive their admissions are. If very competitive, then you should submit your best scores, which in this case are your ACT scores.

I thought my SAT was better? should i still submit the ACT?

According to the concordance table below, a 1340 SAT = 28 ACT.
http://blog.prepscholar.com/act-to-sat-conversion