Thread: Best spark plug
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Old 10-24-2020, 06:35 PM   #19
40cpe
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Join Date: May 2010
Location: Star, MS
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Default Re: Best spark plug

I'm in the minority here, but I put B6L plugs in my 8ba when I built it 5 years/5000 miles ago. It has started missing above 3000 rpm a while back. After checking the distributor, I began ohming plug wires and the plugs. Some of the spiral wound wires showed open and some of the NGK non resistor plugs read really high. One of the plugs read 38000 ohms and several more in the thousands. I replaced the wires with low resistance spiral wound and plugs with Autolite 216 and now it is happy again. I know they eventually wear out but 5000 miles is a little premature for wires and plugs, I think. The Autolite plugs all read less than 50 ohms resistance.
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