shermanmartinez

Well Mr. Webster, just because something is porous doesn't mean that the porosity extends all the way through to the outer surface. I was referring simply to the quality of the casting and lower grade castings usually are porous which is structurally weaker than a better quality mold in the casting process since there are pockets of air rather than metal due to sand getting into the molten metal during the pour.

Well for starters, anytime it has "Brand name here" followed by "style" it is a copy to avoid litigation. The fin layout is different from a genuine Alpina cover (probably to also avoid litigation, since it could be argued that it's not trying to be the same since the fins are laid out differently than the genuine article). As Russ mentioned it also does not have Alpina cast into the upper right corner . The interior casting is also quite porous.

As 76mintgrun02 said, it would help you to either show the distributor number on the body or give the number in your post. He also stated correctly that the 74tii distributor is a vacuum retard unit and not vacuum advance. That is something I have pointed out to more than a few self proclaimed experts (LOL) over the years.