One more time- - - - - -

YOU DO NOT NEED AN EXTERNAL REGULATOR WHEN USING AN ALTERNATOR.

Run the big output wire from the alternator straight to the downstream side of the ammeter. Connect all the supply wires to such things as the ignition switch, headlights, and any accessory fuse block(s) to the same terminal. The only thing that gets attached to the other side of the ammeter is a single heavy wire (#8 maybe) to the battery cable terminal at the starter. Do not connect ANY wires to the original 3-unit regulator. It's not needed. You can remove it, and the wires attached to it unless you plan to go back to a generator/regulator setup sometime in the future.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!