what's the easiest way to change plugs? What do you take off to get to them? Also, what is the best plug to use?

thanks

Depends on the car, but if it has a LT1 motor, you can do the driver side from under the car, the right side it helps if you drop the headpipe and work from underneath. While you are under there change the plug wires also & make sure to put back the aluminum heath shields on the plug end of the wire. I also suggest you replace them with the factory plugs, they are expensive but last for 100K. You really don't want to change plugs in this car unless you really have to.