LActrical NEW BLACK HIGH OUTPUT ALTERNATOR FITS CHEVY GM 220 AMP 1-WIRE 65-85 This alternator fits early model from 1965 to 1980 and comes with v groove pulley upgraded to one wire. You don't need to use your plug just run 4 gauge wire from battery positive to alternator post and it comes with straight bracket 6 and 12 o'clock position If you aren't sure 100% please ask before purchasing