Whipple and Spark Plugs

[nicktechla]

The manual says to check at 20k. For those of you with a few miles on it, how were they at 20k? Anyone changed them sooner?

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[Foxracing19931]

I went ahead and changed mine right at 20k
http://i1380.photobucket.com/albums/ah182/foxracing19931/IMG_0174_zpsbfo1itsy.jpg Guy that installed supercharger had them gapped all over the place as well