1976 Bronco - Wiring

[RR76Bronco]

I have a 1976 Bronco V8 with the factory electronic ignition. I have orange, black and purple wires coming out of the distributor. My engine wiring harness has a brown wire with a blue stripe, a brown wire with a green stripe, and a brown wire with a yellow stripe. Could someone tell me which ones go where? The factory plug-ins are gone. Any help would be greatly appreciated.