Tach likes to read less than 0

I am using electronic ignition (MOPAR) with MSDS coil. Before I disconnected wires to make new harness the tach was working fine. Green wire has always been bolted to negative side of coil and only has voltage to tach when engine is running. When ignition is in run position and engine not running Green wire has no voltage.
Enclosing some pictures. First one is with ignition off. Red hand is lining up with RPM. Second picture is with engine running. Red had is pointing towards shift indicator knob.20220410_131138_Burst01.jpg 20220410_131120.jpg 20220410_131138_Burst01.jpg 20220410_131120.jpg Just can not figure out what I did to cause problem. As I said before, tach worked fine before I disconnected it. Hooked it up the same way as before and won't work. Scratching my head!!