Barrons SAT Chemistry

Does anyone know how different the Barrons practice SAT Chemistry exams are from the actual one? I took a couple practice exams and have been scoring around 740-760. I know Barrons is typically tougher than the actual test, does 740-760 mean I have a good shot at 800 on the real thing? Thanks!

Barron’s books are typically harder. Seems like you have a good shot!