12v key on problem

Good evening everyone. I have recently installed a new motor in the duster. I also installed a complete MSD ignition. The problem is that when I crank the motor with the key. The 12v key on power disipates tho around 6v. Which will not fire the ignition. I put my voltmeter on everything that has 12v key on power and all of them the voltage drop’s. Anyone have any advice for me. I would greatly appreciated it. Thanks
When you say you’ve checked voltage at everything exactly what? Where are you drawing direct battery voltage to the module from? It is connected at the battery or at least the starter relay stud? Have you then tried temporarily supplying 12v from the battery to the switched 12v wire and tried starting? And how old is the battery? Been tested lately?
Assuming it’s this system:

How to Troubleshoot an MSD 6A/6AL Ignition Control