FYI: As far as the original Motorcraft plugs in your truck being standard fare cheap copper, I believe they are actually using double platinum plugs, not copper. Hence the 100k tune up interval they suggest for plug replacement.
I also do think there are probably better plugs available, but I doubt that they will truly provide you enough of a difference to alter your mileage enough to make them worth it.
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Current mods: AEM Bruteforce CAI, Magnaflow SI/DO, Gryphon-87 & 93 tunes, Harley head lamps, tinted windows, lower grille filler, and FX2 lower valance.
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