Topic: SPARK PLUGS


tweetsmith01    -- 05-16-2023 @ 7:11 AM
  what are the best plugs to use in a 40 flathead stock


carcrazy    -- 05-16-2023 @ 11:06 AM
  You will probably receive many different answers to your question. The original plugs from the factory were Champion H-10. Autolite 216 plugs are currently available at a reasonable price. Some people are very happy with the NGK B6L which is a slightly more expensive spark plug.


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