I don't know how an extrovert could score like this, but that's no good. It figures that a test that works so well for me might be screwy for others, blast!
Honestly, I'm a crappy E on my best days. I keep the eNTJ in my personal info because it was the first result I got as an adult. I come up INTJ on every one of these tests that involve a Likert scale rather than a series of questions with a binary set of options. I suspect I'm really just an ill-tempered INTJ with some trust issues (the questions that tend to push me in the E direction are generally the ones that focus on autonomy, rather than a desire to socialize). I would rather lead myself than allow someone else control because I cannot stand being told what to do. If I thought there was a way I could trust others to let me be (in peace), I would definitely be a full-blown I. None of the questions on that test were of the "would you rather lead or follow?" variety so the E part of me didn't surface.
Also, I'm probably more I than usual right now because I'm in limbo...done with a bunch of things, waiting to begin a bunch of others and really tired. E only comes out when there are things that must get done quickly and efficiently. It's kind of a "fight or flight" thing. I won't take flight so that means I end up fighting and that's all outwardly directed behavior, E.