You mentioned its a M[i][/i]opar performance distributor. It will either have been made by Chrysler or Mallory. The main difference is the advance mechanism. The vacuum advances are probably the same. Any vacuum advance for a Chrysler built B/RB magnetic pickup distributor should physically fit and work. The differences will be the internal spring, and the notch which limits the maximum degrees, and the preload adjustment on the spring.
Beware of that.
I just have received the new part that i had ordered.It was listed as a direct replacement part for my canister ,but it is not.
As you can see,they are symmetric,it means the lever and the bracket are inverted.
Here are a couple of pictures,just in case it can helps to someone else:
https://ibb.co/eO2sG9https://ibb.co/bS6Kw9 
