With a high GPA, you should be in good shape for a chance, but no one can say for sure. I don’t believe Northeastern even considers test scores for international students - double check before sending them in. If they do, the 34 will serve you well too.
PS: I’m actually a Northeastern CS student - the program is absolutely amazing and yes, co-op really serves CS well too. I’m guessing you’re going to need a high merit scholarship to get the price down too, which means that an acceptance could still be a rejection, unfortunately. Still, you should be competitive for those scholarships. Certainly worth the application.
As far as LAC’s go, make sure they offer sufficiently for CS. @ucbalumnus has a great thread on that:
http://talk.collegeconfidential.com/math-computer-science-majors/1814245-computer-science-at-some-smaller-schools-including-liberal-arts-colleges-p1.html
With a 34 ACT and a good GPA, I think taking a flier on MIT may be worth it - just don’t get your hopes up.