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Discussion Starter · #1 · (Edited)
What are some of you other boosted guys running your spark plug gap at? I am running autolite 103 plugs and an msd digital six ignition ,any recommendations on a better plug? thanks for any info!!!!!
 

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NGK BR7EFS @ 0.035" gap

ran really well with 9 psi and LTCC ignition
 

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I ran Autolite 104 @ 0.040 with stock ignition on my MPE setup. At 9 PSI it made 498 RWHP and seemed to work well on the street and no issues the one time to the strip
(12.06 on street tires).
 
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