To connect the VG30E to the 1977 S30 chassis, the following modifications were done:
Alternator:
Late Z31 alternator
Removed external regulator
Bleh
Megasquirt
Pin 26 (coil output) to transistor box, L wire
original coil power wire
no ballast resistor
Dash Gauges
Water Temp.
Headlights
Relay
Cooling Fans
Relay
Fusible Links -> AGU Fuses