Stock gap on a 5.0 is .054"
With nitrous, it all depends. The nitrous guys can chime in on this one.
You may want to run one plug range colder as well, again it depends on several factors.
E
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1991 5.0 LX Coupe - 40,750 miles
331 cu. in. / Tremec 3550 / BFG Drag Radials
12.22 @ 114.31 mph - w/1.89 60'
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