This has been discussed a
lot on the forum - including comparing differences between Dynacorn, AMD, Goodmark, Heartbeat, and a lot of worse stuff. I found many threads, including this one from 2012 that has had a lot of views. I'm not trying to promote any one manufacturer or retailer, the statement I made was my own opinion -
http://www.camaros.org/forum/index.php?topic=9964.msg73338#msg73338I've owned three sets of factory GM quarters, still have the first set from 1978 that I bought from GM. I don't think I'd hesitate to drive to Buford and pick up a set from AMD, as the quality I've seen from them is very good. Again, just my opinion.
Regards,
Steve