Originally Posted by Hammerstein
I didn't remove it. But, so then here is my question: If that pigtail you showed is where you are supposed to plug the distributor into the harness, then what of the pins that are on the cap itself? There is the pigtail you showed, but there is also pins for the same thing on the coil/cap itself. I never used the pigtail before (just had the coil+ wire, ground, and tach hooked up to the cap) and it always ran fine.
The pigtail (white arrow below) plugs in to the coil/coil cover
behind (as in closer to the coil) the main power feed and the tach terminal (blue arrow).
There's no need for a separate ground wire unless the distributor clamp and bolt that hold the distributor down on the intake manifold were insulated from the distributor body by paint or whatever.