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We speak Spanish at home.

The fact that English is your second language should be accounted for during the test, it is a slight disadvantage during the verbal sections.
In Polk County, Fl if you are a minority, 2nd language, or low income you will get into the gifted program with a score of 120 vs. the usual 130 mark. It is probably the case in Broward as well, because the State funds the the "Gifted" program.
Welcome & congratulations on the good NNAT score!
Check out Hoagies gifted website, it has alot of good info about the different types of test.
http://www.hoagiesgifted.org/tests.htm