Maybe it is just this particular manifold, but many of the bolt holes seem to be noticably off center in the casting bosses. I am really not a fan of Chinese companies making ripoff copies of North American designed and made products, but if there is any legal recourse, certainly seems that Edelbrock, and others have not been able to stop the counterfitting. But if these are actually going to be readily available, and the Edelbrock originals are not, they will likely sell a bunch of them.