What savory flavors would pair well with chocolate pasta? I want to experiment with making savory homemade pasta with cocoa powder. I think the earthy flavor and dark color will be striking.

I have been thinking about what kinds of flavors could be used for the sauce.

I considered how to get chili powder in there as I love those flavors together.

What flavors (or sauces) would pair well with chocolate in a savory pasta dish?

I did see this question: https://cooking.stackexchange.com/questions/4786/what-common-or-uncommon-flavors-pair-well-with-chocolate
It is more broad and does not answer my question.
Hmmm, I would turn to cultures that use cocoa as a savory ingredient. There is quite a bit of Mexican cooking that does this and you did mention wanting to incorporate chili powder. How about looking at the ingredients in Mole sauce for an inspiration. Not sure I can provide specifics but just trying to give you some ideas. Mole is pretty intense so maybe temper it with a cream? 

Just some idea suggestions for a starting point.