I can't say, based on your scores you are good to take the test (or not) as that wouldn't be as simple as, if you get X score, you're guaranteed to pass. I wouldn't say that even if you had a 98%. For me it was a moment when I went from paying attention to scores and instead things just clicked. It's hard to explain, but I just knew I had the concepts down and it just felt right. It was no longer about how many I got right, but how many I understood what was being asked and how to answer it.
This discussion on this same forum talks more on the stats vs. your score and may help your decision further.
www.project-management-prepcast.com/kune...ht-on-my-scores#9165