What is the proper spark plug gap for a 2002 Ford Expedition with a 5.4L engine?

[Todd_Gearhead]

I'm about to replace the spark plugs on my 2002 Ford Expedition with the 5.4L engine, and I want to make sure I set the correct gap. Does anyone know the proper spark plug gap for this engine? Have you stuck with the factory-recommended gap, or have you found better performance using a different setting? Any advice from those who have experience tuning this engine would be greatly appreciated!