Spark Plug and Cylinder Layout

[1955moose]

Got to use that old timing light for something besides a Lazer light show! Good idea. Takes a little longer , but you can actually see the miss.

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[Denethor]

I get an occasional #8 misfire under hard acceleration immediately after a zero throttle condition, but only with cheap gas. I always attributed it to the stupid variable timing not being able to keep up with low octane variances. I never have the issue when running on 50% or higher ethanol (flex fuel), I have a strange feeling since this used to be a state owned truck it was tuned with flex fuel and ran most of its life that way. I also have no speed limiter due to the special tune they put on it and for some reason it is insanely fast from 80-120mph. Like I can outrun a mustang GT or Camaro doing 80-120 sprints on the interstate