help with wirng problem on a 73 duster

A buddy has a 73 duster small block car that he cant get any spark. new ballast resitor new brain box new alternator. Does anyone have a wiring diagram for this car???

1 again

I was told these were for Darts, so maybe they can help.

2 again

nutter;

make sure the electronic control unit has a good ground.

try cleaning off where the it bolts to the body on both sides of the unit, and try some burr washers....then coat it with battery protector or grease.