Chances of Case (Early action)?

I would say that your scores look good but I would be concerned that you are not taking HL Chem or Math and you want to be a BioChem or Math major.

I would also suggest to do what you can to “Show Interest”
http://talk.collegeconfidential.com/case-western-reserve-university/1929524-how-to-show-interest-in-cwru-2016-edition.html