The wire from the starter to the coil is to bypass the resistance wire and provide more volts during cranking. You don’t need it if already running 12 v to your coil
...which is what the MSD box does. This connection is not needed/used at all when using the MSD 6AL box.
Lesson learned.
Last edited by Bronze Bird; 09/28/1901:08 PM.
I'm a hobbyist. Not a professional. Don't be hatin'!