OK, here are the most recent developments. I disconnected the dash tach wire, but the dwell/tach still gives me somewhere around 100-200 no matter how fast the engine revs.
I called the tech support line at Crane to see what they could tell me. The guy said to put a 10K 1/2 watt resistor in between the "-" coil terminal and the black/purple tach wire. I soldered connectors onto the resistor and covered it with heat shrink tubing (nice job, IISSM. Same *****.
Has anyone else had tach problems after installing a Crane XR700 ignition? If so, were you able to correct them?
Thanks for trying to help.
Howard