SAT 2 Biology

So I’m having conflicting feelings on whether I should register for the SAT 2 Biology Test this coming August without any previous AP Biology knowledge. I took honors biology freshman year (rising senior now) and AP Environmental Science last year which should help me on the ecology portion of the test. I do plan on buying the Barron’s and maybe the Collegeboard books to help me study. Is it possible for me to score above a 750 given the time?