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Old 01-29-2025, 06:38 AM   #3
nkaminar
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Join Date: Jan 2012
Location: Western North Carolina
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Default Re: Dual Spark Plugs

All the V8 hotrods seem to have 8 plugs.

OK, on a serious note, dual spark plugs are not needed for a Model A because of the head design. The turbulence designed into the flat head means that just one spark plug is needed. Dual plugs are needed where there is not much turbulence and the extra plug is needed to fire off the combustion completely and quickly. You see them a lot on T head engines.
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