What lab is it from? That's very possible number. I've had 150mg put me at 1500ng but your estro is high and makes me think it's bunk. Your estro needs to come down about 80-90 points and on 25mg a day with only 400mg test something is not working right.
Your high estro is lowering your test. Everyone has different needs, I would use about 6.25mg eod at most on 400mg but I'm always low on Aromatase inhibitor (AI) dose. Another problem is you will likely start to have prolactin/progestin related issues if you don't get the estro down.
Where is your aromisin from? There are guys who on 300mg of test only get around 600ng on total test so I would consider some more blood work, and test using a different lab to see if it's you or the gear.
Have your shbg, estro, cortisol, prolactin all tested. If your aromisin is good and your estro is still that high try switching to .5mg adex ED and see if it comes down.
Lots of things can effect these numbers. High bf usually equates to high estro.