Go back to who, what, where you got the alternator from. I would NOT put that much alternator in the system without making DARN sure the wiring is up to snuff, MINIMUM!!!:
1....READ the Mad article and perform some sort of ammeter bypass
2....Take apart and check, repair the bulkhead connector and consider upgrading the wiring
3...Install a FUSED protected charge wire from the battery to the alternator
Yes, a different higher gauge wires added, amp meter bypassed (replaced by voltmeter - see posts above), added wire run through firewall to a different fuse box and fuseable link removes and replaced with a breaker.
However...to my question, does anyone know if the stock voltage regulator will need to be replaced and if so any recommendations from experience? The alternator will install next but I am looking to cross my T's on this.