HEI Upgrade but No Spark (kinda)
Yes-I followed the first diagram (from post #38).
I had the positive coil feeding both the B and C terminals on the HEI module.
But I also had power going to the neg (and tach) coil terminal.
As you mentioned that diagram is effed up-and I printed it off and followed it as gospel. Bad move.
No issues with any components just bad wiring following a bad diagram.