Turned up boost. Now no idle and no boost pressure???

[Scruggs86.5T]

First off a little background on the car, well I guess read the signature. I am running the Maft-pro in speed density. I turned up the boost using the elctronic boost controller on the Maft from the stock wastegate pressure on the 20g being 10psi to 12psi, everything was fine. I then went up 2 more to 14psi. After the run I immediately felt a loss of power and my afr's went to about 12-13. So I tried to boost just a little to make positive pressure and only got to about 1-2psi and I could hear the boost leak through the window. So I immediately pulled over, upon doing so I put the clutch in and then the power steering went out, look down, rpm's at 0, great! I try to start the car again and nothing, the only way I could get it to start was to get on the pedal a little and when I did the afr's were still rich. Let off the gas and it dies.
So issue is that I have a boost leak. I dont have anything to test for a boost leak, so I am trying to narrow it down by going off the idle symptom. I want some help with my reasoning before I go tearing down the intake.
I am thinking that I have a leak on the engine side of the throttlebody, meaning like a manifold gasket or something. I did get it to idle this morning, I am guessing because it was cold though, my vaccum was around -8 where it is typically around -18 or -19 and it is running rich still. Can anyone confirm what I am thinking? It just doesn't seem like it would be on the intake piping anywhere with the idle issue I am having. Thanks for the help.

 

[hvyman]

Id start by checking for a boost leak and checking codes.

 

[Scruggs86.5T]

No codes. I looked for a boost leak in all of the usual places, meaning any of the silicone connectors on the hardpipes, intercooler and turbo to the throttlebody. I think why I am having an issue with this is because of the difference in where and how the air is measured. If it was the normal setup with the afm I would think it could be anywhere in the intake system. But being that I am using speed density with the map hooked up after the throttlebody, it makes me think that the leak has to be after the throttlebody.
Bottom line is that I know there is a boost leak, I've had them many times before. I guess I just wanted reassurance in my thought of the manifold gasket being the problem before I tear all the way into it.
Regardless I am down to the lower manifold already and waiting until tomorrow or the next day to take it off. I dont like leaving coolant out of the car for a long period of time unless I absolutely have to. I just dont have time to finish it right now.