I hope you grabbed the non E.G.R. intake manifold too ? .

FWIW, match porting requires you to remove the cylinder head and deliver it along with the manifolds you want have matched .

Match porting is good, I do it occasionally but I cannot imagine Mercedes didn't do this when they manufactured the engine .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better