1 FIELD TO 2 FIELD ALT

When i bought my 67 barracuda i noticed that someone put in a newer engine bay wiring harness. Not sure what year the harness is. Its a electronic ignition wiring harness. Its also has 2 field wires for the alternator. I have a used but very new 1 field wire alternator that i would like to use. Can i some how use that 1 field wire alternator on my 2 field wire harness ?