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best type of spark plug for 4.6L???

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Old 08-04-2005   #1 (permalink)
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Wink best type of spark plug for 4.6L???
I was about to tune up my 98 and I was wondering what the best type of plug is for my 1998 GT?
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98 GT black, 5 speed, Magnapack cat back exhaust, K & N FIPK gen 2, 03 intake manifold, 9mm ford racing wires, steeda underdrive pulleys, Steeda shift benzel, steeda billet shift knob, Mach 1 bullit race padels, cobra headlights, steeda short shifter.
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Old 08-05-2005   #2 (permalink)
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Autolite 764's or NGk TR55's
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Old 08-06-2005   #3 (permalink)
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the only words you can read on the NGK box, in english are the words
"good ****"
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'98 GT-Silver Mostly Stock
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Hopefully soon to purchase and get installed:
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4.10s or 3.73s (though i've heard that they DESTROY trannies)
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Old 08-08-2005   #4 (permalink)
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NGK TR55 or stock #3951... You don't need the iridium unless you don't plan on changing em for another 100k
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