Weird thing in the MotoRad 206-180 Box

I tried several gaskets a changed types and amounts of sealer. I then bought a new chrome housing. BIG mistake, it leaked worse. Finally, I bought a Billet Specialties housing with an O ring. Problem solved, leak gone. So I am curious what is different about this gasket. BTW, I was dealing with an Air Gap intake. I even tried carefully block sanding the mounting surfaces.

Ugh, as a daily-driving hobbyist, I dread hearing these kind of stories. I'm just gonna follow @Dana67Dart's advice above, keep it all clean, and it's just gonna seal perfectly the first time (he says while biting his nails a bit).