Edelbrock Cylinder Head Quality

So all the other cases were just lies? It's manufacturing there will always be good and bad ones it's not like they are all guaranteed to be junk. You were lucky and got some good ones.
It's the interweb , 3/4 is bs , the next 1/8 might have an agenda , or work for those with one . The rest might be back yard hacks that f'd things up and are looking for someone/thing to blame . Seen it many times over that last 45 + years , wrong can , bearings whatever and once things blow up look for an excuse or part to blame .
Shop I go to has installed and sold and or installed hundreds if not thousands of ede heads , has yet to have a problem