People might recommend other plugs, but people who have tried other plugs (myself included) and gone back to Champion swear by the stock Champions (part #412, I believe).
They should come gapped .035 out of the box (doesn't hurt to check).
I don't know anyone who has indexed their plugs...
My observations from the Chicago Auto Show:
The new Viper can best be described as EXTREME. The front end looks a tad bit wider than the back (viewed from front or back), but that's probably just an illusion. The raised back end takes some getting used to. The bigger rear wheels and meatier...
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