[Adger Smith]

Just thought I would post some links to plug reading.

http://www.empirenet.com/pkelley2/sparkplugreading.html

http://www.dragstuff.com/techarticle...ark-plugs.html

http://www.4secondsflat.com/Spark_plug_reading.html

For those that like video:



You might keep in mind the pickup clearance plays a part in the rise time of the signal going to the ignition box. Too much clearance and the pickup will read a short spike from the magnet. To little clearance and it will cause a longer dwell & confuse the signal the box sees at High RPM.