Originally posted by HoosierContour:
Anything wrong with the Motorcraft AWSF22PP?
They are colder, meant for 2000 SVT (not sure about other Duratec) with its higher compression. I use them because they are the coldest plugs available in double plat for our engines (and with my high compression). Probably not a great idea for engines that don't require them - they'll probably foul on you.