Low diy postbacc gpa?

My undergrad GPA w a bachelor’s in psych was a 3.15 and my DIY postbacc GPA to do all my prerequisites was a 3.3. I have strong EC’s and i plan to take my MCAT in the spring. Is there an ideal score that i should get (like above 515 maybe?) to have a shot? Idc abt MD vs DO so i dont mind applying to lowtier MDs and DOs if that gives me a better chance?