Go to Autozone, $54 I believe. If you have oil in your plug wells, you'll need plugs and wires. Doing the stem seals and and cleaning out the oil without new wires and plugs, can actually make things worse. To get the oil out get a turkey injector from your local grocery store. Just suck it out. Best solution you'll find. Some say a windex sprayer, but that gets oil everywhere and can take forever. Taylor Spiro Pros at Summit at about $95 with 2 day shipping. OEM wires are $100+. The only plugs to get are the MOTORCRAFT AGSP32PPs. Don't get that Autolite stuff, they're a bit shorter, and they're shaped slightly different. People have gotten as little as 1k miles out of them. $3.79 a piece, is cheap insurance. Not to mention some sort of special coating on the plugs. Good like and remember 11-17 punds on intake bolts, and 7-12 on the valve cover bolts.