Jul 15, 2011 #21 D dutch Well-Known Member Joined Nov 27, 2008 Messages 1,834 Reaction score 24 I put new copper stocker autolites in mine, and to my surprise some (fairly new) NGK iridium plugs came out.. gotta say it runs smoother imo.
I put new copper stocker autolites in mine, and to my surprise some (fairly new) NGK iridium plugs came out.. gotta say it runs smoother imo.
Jul 17, 2011 #22 B BigTang Active Member Joined Oct 9, 2008 Messages 893 Reaction score 0 I just pulled platinums out of mine and I swear they were factory(they looked like they had a million miles on them, gaps were burned open into the .07 range). The Oreilly motorcraft replacements are platinum as well. part number is SP432
I just pulled platinums out of mine and I swear they were factory(they looked like they had a million miles on them, gaps were burned open into the .07 range). The Oreilly motorcraft replacements are platinum as well. part number is SP432
