It appears The Hammer's "Junkyard Genius" website, with all his handy diagrams, no longer exists. Bummer.
I'll take a stab at your question, but be forewarned, electrical is NOT my forte'. Hopefully John Strenk will chime in....
The Delco alternator is internally regulated, so the old external regulator and related wiring goes away. Below is the best diagram I could find of the Delco wiring. Note, this diagram shows the #2 sensing wire looping back to the battery terminal on the alternator. This article
indicates that this configuration is OK, but not ideal. Instead, they suggest to run the sensing wire from #2 to the + terminal post on the solenoid.
Hope this helps,