SR20 Boost leak issues

[DrewS13Coupe]

Ok, I've been chasing boost leaks for a while now and I had the car running good for the past 200 miles. Then all of the sudden it turns to crap on me driving home from work yesterday. So I plugged in my pressure tester so I can pressurize all of the piping and I hear this god awful leak from just behind the valve cover. I thought it might have been the check valve for the brake booster but no such luck. What other vaccum lines and junk is there back behind the head? I didn't do my swap so I'm not real familiar with what's back there.

Any help is appreciated.

[Luvs2slide]

As far as vaccum...hmmm. Well that I know of, there are 2 Heater hoses, then, the brake booster line, and then you have some coolant hoses. Ones is for the stock turbo and there may be a another one...I'm not too quite sure. But as far as straight vacuum hoses, I dont really think there is any. Hope that helps.