Brought Dart to shop to fix idling issue and car runs like s**t!

You can do the "cylinder kill" manually pretty easily. Pull the dist. boots up gently and loosen the wires in the cap. Couple ways to do this.......

Take something like paper clips or small brads and slip down beside each wire. Now you can ground each cylinder with a grounded probe, watch a tach or vacuum gauge on each "drop."

Or with the wires loose, pull each wire up a little while you slip a grounding probe down into the tower, for each one in turn.