Motorcraft AGSP32C's will work fine. Edelbrock gives a Champion # also, but it will cross reference to the Motorcrafts. It's a gasketed plug that's one step colder than the stock one.
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1985 Mustang GT
'85 GT "Red302" 12.96@107.1 N/A ... Sprayin' for the 11's
2003 Torch Red Mach1 
'68 Fastback ...331 Stroker "Restomod"
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