Noticed lower boost than before the pedistal oring job.
Used to be maybe 15 lbs., now only get maybe 10.
Maybe loose boots on the tubes?

 

Did you notice after tightening up the up pipes to the turbo if the up pipe collector was loose? Might be time to build yourself a boost leak detector.

Here is a quick video that Trey (from FTE here) did for us to view and build.

 

The up pipes are probably loose. They get really loose right where they connect up top.
Usually have to replace at that point.