Re: Carbon on plugs and piston tops
I believe Ronnie was likening the carbon buildup on a flathead piston and its attendant heat rejection qualities to the more recent application of modern coatings on pistons of later model engines.
Both serve a useful purpose as long as the carbon layer doesn't get too thick and cause interference problems or preignition.
Terry
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"It don't take but country smarts to solve the problem" (Smokey Yunick)
'41 Merc Town Sedan / 260" 8CM engine
'66 Fairlane four door / "warmed up"  302
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