My SVT came with AWSF 32F Motorcraft plugs. I recently heard that the 2000 SVT came with the colder 22.
Unless you know what you are doing, don't mess with the heat range. Contrary to common belief, a colder plug does not generate more horsepower in and of itself. Too hot of a plug will wear faster and too cold of a plug will foul too easily. Unless you have made extensive modifications such has much higher compression or huch wilder cams, don't mess with it unless you have studied the subject in depth.
