Let's see.........ummmm....... you have a PowerDyne Supercharger on a "Stock" motor. Let me explain:
1. If you are running more than 6 pounds of boost your are screwed unless you have an Intercooler to cool the very HOT air charge that comes out of ANY supercharger or turbocharger.
Hot air into an engine not "set-up" for it is SCREWED. Hot air into a "Stock" engine = Melted pistons ;-(
2. Pull ALL of your Spark Plugs and "LOOK" at them and try and determine if any "Cylinder" has been "blown out". Look for: oil contamination (bad rings or hole in piston) and-or melted metal on the plugs and-or severe fouling.
3. Do a "Compression" check on ALL cylinders and see if any are below spec by more than 10%. (I believe you should be looking for at least 120 pounds as a minumum)
4. If everything seems ok then pull your O2 Sensor and "Clean" it with toulene ( you can toulene form any hardware store) and a brass wire brush. DRY the O2 sensor before re-installing it.
Caution: Toulene is VERY toxic, try and not breath too much of it.
Any other questions......... email me