Black or umm 'not black'??

[Flying Scotsman]

An update on my Nova.
Recently fabbed up a front air dam in aluminum to head toward that vintage SCCA vibe i'm shooting for...should I leave it raw (brushed) aluminum or paint it flat black?
I seem to be getting an overwhelming 'paint it' on stevesnovasite.com, so thought i'd throw it to you guys.

Chris

raw (cleared) aluminum....



and a quick P/S black...