E3 plugs

When my son ran in the kid kart class with a comer 50 motor we tried one and it seemed to run better. Other than that I have no other experiences with them.
 
That idea that they call a revolution was available after WWII, from several different brands, didn't last long, just another gimmick, go to a NHRA race and ask any of the top fuel or funny car guys if they use them.
 
I did testing on a comer 50 with the popular NGK BR7 and the E3. just running on the stand. at running temp. ran with NGK then with E3, back to NGK then E3 again. The E3 idling on the stand was 100 to 150 RPM higher both tries.
 
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