New broken demon

Sadly, not an uncommon thing now. Be it carburetors, manifolds, heads, or whatever- there's no such thing as "bolt on and go" anymore. Whenever I buy something new, the first thing I do is tear it apart, clean, readjust, check tolerances, etc. Anything from machining debris to casting flash to just plain poor assembly is the norm now. Quality control is a thing of the past.