Chance Me?

Hey, so I’m currently a junior in a highly competitive class of 2017, and I really want to attend either UGA or Tech. my class rank is around 300 out of around 760, and my gpa is currently around 3.78 on the scale both schools use. If I manage to get above 1500 on the new sat, what will be my chances? I also have above average extracurriculars (piano, tennis, and HOSA). pls help