Your really hard pressed to find parts still made in the USA. I still have my original AC Delco coils which we switched out when the first plenum pull was performed. I have replaced them with the MSD's and they are working fine. The rebuilt alternator on the other hand only lasted a few months and I just changed it out again recently with the 200Amp unit I have. Even members have had problems with that unit.
The point I am trying to make is that for alot, not all of the electrical parts for any vehicle is now more a crap shoot, rather than a given for performance and longevity. So we take our chances and hope that what we purchase will last and perform a very, very long time......