I still run a separate ground wire. Humor me. The Chrysler distributor is SUPPOSED to have a gasket under the flange between the flange and block as well as the o-ring everybody is familiar with. The distributor gasket is FelPro #6464. Years ago, they used to come in all the main gasket sets. Some still do, but not many. So most people got accustomed to simply leaving them off. That gasket is supposed to be there. If it is, there's only the hold down bolt going into a possibly dirty hole in the block making that ground connection. Even if the gasket is missing, that's not a very good dedicated ground, IMO. It should have a separate ground wire. Just one old redneck's opinion of course. Take it as you will.
