<p>I agree with everything stated above. That 550 math can certainly crush your chances in general, never mind for engineering. Do you really know what engineering entails or does it just seem like a good idea? I think you may enjoy a more science and less math oriented field. I would reconsider applying with that major instead; unless you are certain engineering is for you. I wouldn’t send your SAT score, and now just focus on the ACT. A 31 is definitely low for Stanford. A 34 would be ideal, but at the very least try to get a 32-33 composite with math and science being your highest sub-scores if possible. Take SAT IIs to show your math and science skills as well. If you can’t get your ACT score up with the September test then definitely just apply RD so that you can get another shot at it. Good luck!</p>