Engine This is my improved engine, it has new spark plugs and s.p. wires, the new intake, and a nice billet oil cap. It's come quite a ways from what it used to be. I had to replace my valve cover gasket and all the other rubber deals on the valve cover. I also replaced the old spark plugs with new NGK plugs. As you can see the old plugs were dirty with oil and carbon build up. Maybe I was the first to change these? Here's a closeup of that nice new intake.