How do you change spark plugs 1996 Buick Skylark 3.1?

The front plugs are (relatively) easy, but shoot some WD-40 around all of them and let it sit for a day first. You'll need a universal joint for your wrench for the back plugs. You have to rely on sense of touch for them. They're a royal pain to get to and remove. I actually took mine to a mechanic to replace them and even they had trouble....