whats happening here??
 

I cant get my car to run rich at all. I have a stage II turbo kit from hahn's and the regulater is completely to the right to make the car RICH as hell. I highest ive gotten lately on volts from o2 is .93 which is rich but most of the time its .87-.89. I dont know what to do...

.87-.89 is fine. I forget the scale of what A/F ratio it is but I do know that those voltages are great.

what are you doing for a fuel system?

Sounds like it's time for some bigger injectors...

Will the GST injectors fit in to the GS models? Maybe give that a try. Im not real familiar with the DSM cars though.