well add some ACETONE and it will cure your plug problems...
LOL!!!!!

really- I prefer running the Champ surface gap plugs-like the ones for marine applications alsop same upgrades for the vipers but short reach.
oh and never run a resirtor plug in a high comp engine, as the cyl press gets higher the spark has more resistance to jump the gap-so as the gap resistance increases so does the series resistance of the plugs resistor and wire resistance to a point ehere you can loose 1/2 your spark power in the wire and plug alone.
simple balanced bridge ohm law with a littke dielectric constant throen in