You will quickly find that the first part of my life I was a GM mechanic and the last 23 years an electrical engineer and between those 2 careers I have a strong bias toward OEM parts ONLY on my cars, even if they are 46 years old.... I will find overpriced NOS before I will buy many aftermarket parts. That will become apparent as this thread progresses.... I get a lot of flack but my Coronet has 10k trouble free miles on it will my friends fight problems with their aftermarket "upgrades". :)
