Autolite Plat Pro are also on sale at NAPA for $3.99 in May (and are totally overpriced otherwise). And then send in your rebate for another $1 per plug.
You can go with APP764 (full threaded like AWSF Motorcraft) or APP104 (partial thread like AGSF Motorcraft). The taper seat sets the plug height so the thread length makes no difference.
