David,
The best 'no foul' plugs ever invented are Bosch Platinums. We ran them exclusively in Carbed Race Engines for years. DPO 5's for carbed/Mechanical injected engines with points or without.
Anti Sooting, Self Cleaning...
as for the rumor....well...the x-spurts spreading the rumour have scientific data being reviewed by plug manufacturers and the SAE right? {
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Rich Running/Oil Burning fouls plugs, bad ignition systems prevents plugs from firing in the first place. Platinum, Iridium fine wire plugs will fire in the most hostile enviroments and severe duty across the largest spectrum of use.
