lol, aren't you the same person that keeps posting about going to unc for biomed?
and to answer your question... i have no idea about summer engineering, but i got into nc state (school of physical and mathematical science) with the following:
SATI: 670M 630V
9th grade gpa: 3.6
10th grade gpa: 3.8
11th grade gpa: 4.2
12th grade gpa (as of time of application): 4.2
courses including: honors bio (b-), honors english 9(a) & 10(b+), honors chem(a), honors physics(a), ap calc ab(a), ap stat(b+), ap physics c(a), ap gov't and politics(b+), ap euro(a)
kindof a quick runthrough of my transcript, if you need anything more detailed (doubtful) just ask.
and oh yea, i'm 4th generation... probably helped