its possible that it could be bad...yes....but...
When i bought my '00 gtp last year (from an older fellow) , my car was pushing out very, very little boost. it was putting out about 2 bars on the dic (i know that it is not accurate for reading boost) but it didnt feel like the car was any quicker than my GT, so i changed my bbv and no difference. i've never heard of this happening to anyone else but the black lever that goes into the blower (the bbv controls it to open or close as rpm's increase) was actually stiff and the vacuum operated bbv couldn't move it far...turns out i sprayed some rust check around the seal of this lever and it started moving free. took the car out for another spin, put my foot in it and well.....BOOST (u could feel it), and the dic read full.
The moral of this story is my lever into the blower was seizing up ...oiled it and all was well....if that engine u just dropped in sat for awhile then maybe u have the same problem.
