SRT-4's are pig rich from the factory. I had a boost leak, a big one at that. Sounded like a shower on full blast when the boost leak test was done. You cannot feel a boost leak unless literally a intercooler pipe comes off or a vaccum line pops off. My pipe was still on the intercooler and I was boosting 17 spiking to 19, boost leak fixed still doing the same just feels stronger. SRT-4's are PCM controlled boost and fluctuate depending on the temperature unless you go around the PCM so it doesn't control boost.

But I was just suggesting something that is common with these cars. A compression test would help, checking the spark plugs and so on as well.

The 1g turbo Laser I had, had about 5 boost leaks... I could not pin point any of them. So I replaced the gaskets and seals... bingo no boost leaks. If you have more then one in the general area you cannot hear them and when you do a boost leak test its hard to pin point them. It's hard to hear a boost leak with the car running, you can feel it if its major one (ic pipe off, etc.) but you definately can't hear it.

Hope the info. I gave you helped. Seems like you ran into one a kid had and ragged on it. Probably an easy fix though.