Anyone tried one of these HEI Distributors?

I don't believe "no name" is an accurate description. I posted a link to the actual manufacturer's website in the 7th post in this very thread.

I did speak with the manufacturer at AAPEX 2011. regardless of the US vendor, any of the units you see with that chrome plated, formed steel cover came from the same plant in China. The module under that cover is a standard transistor switch, with screw terminals. The magnetic trigger will work with other ignitions like MSD by connecting the trigger coil like any other magnetic unit.

B.