SB Mopar Performance Billet Distributor

These are made by Mallory for MP or Mallory has the same distributor.
You can get a spring kit and it comes with pieces to set the advance.

I can post a pic. of what they look like if want to make some as the kit
was something like 40.00 for some springs and the plastic pieces to
set the timing.

I've found 4 of the ones with the adjustable vacuum advance in
the yards around here. Alot of people put the MP kit on the M-body
cars to replace the lean-burn computer.