That is a version of the "Small Cap HEI" system that was once sold by a business that no longer exists. The one that actually works is made from a modified version of the distributor that was originally on an early 1980s Chevy S-10 pickup with a 2.8 liter V6. The item in your photo looks like one of the offshore made "clones" that are being sold on Ebay- - - -ones that don't work well, if at all.
Assuming (and that's a BIG assumption) that the housing depth and oil pump drive have been manufactured to the right dimensions, you can retro-fit it using USA made parts such as the pickup coil, trigger module, and ignition coil to get rid of the overseas junk it's probably running now, and wire it up using a wiring diagram for an early 1980s S-10 that uses a vacuum advance instead of the later models that used computer controlled electronic timing advance.
OR- - - -you could just go back to the point type ignition that powered the vehicles that won WW II, and got untold millions of civilian vehicles to their destinations and home again for at least four decades.
Jerry
