440 Source Big Block Alum. Cylinder heads

By chance, has anyone out there purchased the 440 Alum. Cylinder Heads from 440 Source?
I'd like to hear about the quality, the fit, any flaws, problems, etc. if you did.
I don't know where these are being produced at, but everytime I've called there, they are waiting for the next batch to come in. So, I'm wondering if these aren't being reproduced in China???
Any advice, Your comments are appreciated.

Coronet Blue