Alternator field wires

I swapped out two other regulators and grounded them directly to the battery. It stops charging when you disconnect the VR plug. I have not checked the running voltage on the blue field yet.
Engine harness is all new but has been modified. I removed the ballast resistor, and original ecu wiring. Integrated in my MSD fuel injection and MSD 6AL wiring. Run 1 & 2 are tied together and feed the blue field. So im thinking maybe the load on the run wire is too great. Its only switching on the 6AL and Atomic EFI which both have large gauge wires going straight to the battery so they should be on relays internally.