You cannot remove what is does not have. There is no governor on the vehicle. The engine revolutions and speed are controlled by the ECU and you cannot remove that nor reprogram it unless you are a techno whiz.
You will need to raise the car up and make it SAFE. Then you will have to remove them from the bottom you can reach them better. You may also have to remove 1 or 2 from over the top of the tire / fender well. it is a tough job.
The 1995 Z28 camaro has a v8 engine in it. That engine is a ctually a steel version of the corvette engine. Since there are 1995 camaros with v8 engines in them, you can probably fit a v8 into your car.