Fella,
I like the single wire myself. No mods really, just chop the the extra wire out of the harness. Tom, owner of Mr. Alternator has a great set up, with full instructions to make it even easier.
He's also a sponsor of the Fling!
www.mralternator.com
DV -- 300 Cobras is NOT enough, and by golly we're going to make it!