I've been runnig Indy (no logo) for five years and love them. I use standard cork gaskets with no issues. My dad had fabbed covers from 440 Source but has traded them for Mopar Performance. I didn't like the breather holes in eather of the Source or MP covers. The fabbed beathers are one in front and one in the rear, and the MP breathers need to be drilled an take a special grommet that won't fit with the evac system that we use. The Indy covers don't stay clean but I'm into the raw stained aluminum look.