Three wire alternator on a two wire system?

The alternator that came with my motor is a Duralast DL7014 pictured here in the vehicle it came out of (another '68 cuda, but it had a three wire system). Its a 50 amp unit - more specs here: http://www.autozone.com/autozone/parts/Duralast-Alternator/_/N-93xme?itemIdentifier=333476_0_0_



My current '68 cuda only has a two wire system. Can I use this alternator on the two wire harness?