I just recently bought some plugs too but haven't installed them yet. I took the reading off my old plugs and brought it to Ford. They looked it up and the plugs been replaced by what I got: AWSF32F. I'm not sure if they're double plats though.

Black 98.5 SVT w/ KKM intake, 73mm MAF, ASP pulley, Optimized stock Y-Pipe, 24mm hollow rear sway bar, Magnaflow resonator, Magnaflow mufflers, Roush springs, KYB struts