The pattern I see here is that all the guys that have this " issue " are 1992 SSEI'*.
Maybe it is particular to that year model ? Must be the PCM then.
I do feel better knowing you guys have the same deal going on.
It just feels like GM was WAY too conservative on some programming in certain areas.
You only get a taste of what the car can really do after about 4000 RPM'*.
Getting there is like :(