Quote: Reading the plugs is often mentioned. I have never done this. I hate to sound like a newbie but in a 440 B body with 2" headers and power steering, how is this done without burning a persons hands? Every time I have changed the plugs I wait until the headers cool down. I'm a Carpenter by trade and obviously need my hands for work. Isn't the procedure to run the car hard at WOT then shut down and pull the plugs immediately?
After your WOT run you can let the engine/headers cool before removing the plugs. The plug coloring will not change while the engine is off.
