Thats really good... Unfortunately, it's not very predictive of anything.
Kaplan themselves will give you an estimate but I got a 45% on that exam when I started and they said you should take 3 months after you're done with the Kaplan course and that was very close to the truth. I'm pushing close to 65% on UW now and it has been 2 months - of course, all random timed blocks with unused questions.
You should be happy with your score because it implies you are almost ready. Use the analysis to find your weak points and then keep doing what you were doing otherwise