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471 Posts
Okay, here's the deal. '86GT's, and '93-'95 Cobra's use Motrocraft AGSF32C or Autolite 764.
'79-'84, and '87-'95 GT's (or any with H.O. 5.0's) use Motorcraft AWSF32C or Autolite 25's.
Using the longer AG series plug in an H.O. motor is asking for piston to plug contact, not to mention it will run like crap.
Using the shorter AW plug in a Cobra or othe GT40 style head means the tip will not stivk far enough into the chamber.
'79-'84, and '87-'95 GT's (or any with H.O. 5.0's) use Motorcraft AWSF32C or Autolite 25's.
Using the longer AG series plug in an H.O. motor is asking for piston to plug contact, not to mention it will run like crap.
Using the shorter AW plug in a Cobra or othe GT40 style head means the tip will not stivk far enough into the chamber.
