Doesn't look like anything's been done to increase the voltage to the
plugs over stock, which is what's needed to allow more plug gap. I tried
running increased plug gap on my '92 3.9 and found that it ran best with
stock gap and Autolite Platinum plugs. Maybe with a Jacobs or MSD
ignition it'd be possible, Kuk should know since he's got an MSD on his
Dakota (I think).
Larry
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