97 Pontiac Firebird with a 3800 series II supercharger?

A 1997 Pontiac Firebird with a 3800 Series II supercharger is a highly unusual, and likely a custom, modification. The factory never offered a supercharged 3800 Series II engine in the Firebird. The 1997 Firebird came with a variety of V6 and V8 engines, but none included a factory supercharger.

Therefore, if you've encountered a 1997 Firebird with that setup, it's been aftermarket added. This would involve a significant amount of custom work, including:

* Engine Modifications: The 3800 Series II would need to be modified to handle the increased stress of forced induction. This could involve upgraded internals, fuel system upgrades, and potentially a different ECU.

* Supercharger Installation: A supercharger kit would need to be sourced and installed, requiring significant mechanical expertise. This isn't a simple bolt-on job.

* Tuning: Proper tuning is crucial for a supercharged engine to prevent damage and optimize performance. This typically involves custom tuning software and potentially a wideband air/fuel ratio meter.

* Supporting Modifications: Other components like the transmission, axles, and brakes may also require upgrades to handle the increased power.

In short, it's a custom build and not a factory option. The performance and reliability would depend entirely on the quality of the work done during the modification process.