Electrical load problem

The electrical system in these cars is old design. Fuses, no buss or relays for the higher draw stuff... I would check the bulkhead connector for cruddy connections, and the fusible link wire too. You need to run about 9volts for the stock electronic ignition to fire, about 6 with points. So if you're really that low you have a serious problem. If all the stuff is new and functioning then you need to check the wires...