i used to own a 380 that i changed over to a 500.and i fitted dual manifolds to it[1 manifold for each two cylinders]ran like a scared jaguar.maybe you've found it.it was a euro engine.

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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
http://www.w108.org/gallery/albums/A...1159.thumb.jpg