Slant Six Dual Exhaust

I think the sound comes more from the camshaft.

Depends on "what part" of the sound you mean. A "split" six manifold sounds very distinctive, but a cam, just like the difference between, say, a stock 318 and a "bit of a cam" in a 340, makes it sound "like an engine"

Even today, if I hear a split 6 I know immediately what I'm hearing. And I don't get to hear that very often, anymore.

[ame="https://www.youtube.com/watch?v=uUPLTdYaF7U"]Slant Six with Dutra Duals and Flowmaster 40s - YouTube[/ame]

With headers...........

[ame="https://www.youtube.com/watch?v=TK9uB1XL8zA"]My '72 Dodge Dart Swinger Special Slant 6 with Headers & Dual Magnaflow Exhaust - YouTube[/ame]