so if you got a 1670, then you rock!

here go to this link http://www.collegeboard.com/student/testing/sat/about/sat/FAQ.html#quest16

there are frequently asked questions about the SAT to help you figure things out.

and basically, high school students should have consisitency in grades and they should be good grades of course. grades in freshman and sophomore do matter because it all ties together with your overall GPA. (grade point average)

colleges look at GPA and HPA (which is honors point average)

and also, extra ciricular activites, like clubs and sports, are very very important

hope this all helps =]