351M spark plug gap?
#16
04-20-2019, 09:33 PM
Tuned
Join Date: Mar 2002
Location: San Antonio, TX, USA
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#17
04-21-2019, 09:20 PM
I would gap those plug regardless of engine and distributor @.53 From what I have read most of the retarded de stroked engines use low gap only to meet emission standards,but they still perform better burning more fuel than a lower gap.
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