Alternator Upgrade Checklist.

Since you have gone to a relay for the ignition buss and plan to for headlights, consider getting an underhood relay box.

Bussman makes some nice ones that you can configure yourself, or you can rob one out of a junker. I recently picked one up out of a Jeep Cherokee, but the one I'm using in my 67 is out of a Voyager van. It mounts nicely on the fender apron to the rear of the battery:

This box required some rewiring, but easily done, and has fuses which you can use for various loads. I have relays for ignition, pump, headlights, and security, and more than one unused for later