Of course everybody did remove the heat shields I hope.The spark is looking for a ground.(light show).

 

crap forgot to do the msd test, ill pass along opti hardwiring info as well as ask about the alarm.

 

so any headway on this?

 

yea we did the test, and with the msd box hooked up, the ac-delco wires arc and glow

 

so without the box it went away?

 

yes, were going to see what msd says about it, bet they say to buy their wires!

im hoping bad box?

 

called msd, i believe the tech's name was nathan

he said corona glow is a regular occurance and nothing to do with a misfire

he said the static build up can even build up and 'discharge' much like a traditional misfire arc. but much less intense.

only reason i believe him is because he DIDNT try to sell me a set of msd wires to fix it.

he was more concerned with vehicle grounds and specifically a direct ground from msd box to battery.

 

hmm, you mention ground issues... I wonder if I run a strap from each head to the chassis this might help?

I dont think this is an acceptable condition, and 99% of cars on the road do not experience this.

Sounds like the tech was legit, I agree.

 

So did you ever get rid of this problem? What worked?

 

nope we just took the msd box off permanently

 

So with the box removed the arcing stopped 100%?

 

Interested in the outcome of this as well, I'm running a 6al and now am thinking of looking underhood in the dark..