car still diseling run on prob

I would not use Autolite plugs.Mother Mopar used Champions so thats what I have always used and I have never had any plug problems.I used Autolites once a few years back in a 440.The Autolites worked fine for a few hundred miles after a while it became hard to start when the engine was warm.I pulled the Autolites and put in Champions and never had any hard to start issues again.
Jim