Senior Tech Team
Join Date: Apr 2012
Location: Yerington, Nevada
Re: Alternator & External Regulators
Both stock and VR regs work with all amperage remote regulator alts.
EASY to get a 3 wire GM alternator to function correctly, one jumper wire, and, the large battery wire off the back of the old alt will make it work if there isn't a charge light. Another single wire from old reg wiring loom to alt will get the charge light working.
Sounds like a large cap HEI. If the coil got damaged, and they usually do that all by themselves, from the battery not in the circuit, it WILL continue to blow HEI modules, for what appears to be "no clear reason", and, if you didn't know that, would confuse the daylights out of you, until you changed the coil out of utter frustration.