[Dana gear]

Idle control board mounting screws can raise problems check there as in above post, panel grounds through its mounting screws, they can look o.k. and still not provide a good ground.

On your alternator if using a Delco internal regulator, non self exciting, then you will have two spade terminals numbered 1 and 2 along with the power output (BATT)
Number 2 you can jump to your BATT stud on the alternator output.
And number 1 if not wired through a alternator warning light (for resistance) then you will need to wire a diode inline with this wire going on to your ignition switch.
Problem is with wiring direct to your ignition switch with #2 when the power is turned off the alternator can back feed to the ignition and supply enough power to the coil to keep the engine running.
You can pick up isolation diodes from any alternator rebuilders and some auto part stores.