I did some work on the car and when I finished it would not start. I installed a Fluidyne rad, a flex-a-lite fan, and oil pres/water temp gauges and now I have no spark. I don't have a clue. I changed out two other igniter coils without sucess. Stuck in Michigan

 

You say no spark from leading..either wire correct?
How about the trailing...Any spark?

 

There is spark at the traing...both wires, but nothing from the lead

 

Try this. Same problem a while back:
https://www.rx7club.com/forum/showth...hreadid=177569