Muahahaha, I have exactly what you need!!!!
Complete 78-79 CVCC Wiring Diagram
It shows is a black/white wire from the ign switch to the Neutral Safety switch to the starter. Maybe the neutral safety isnt plugged in. I couldnt see it in the pic on the last page. All I see is the brake switch. The connector will have 2 Black wires with a white stripe.