thoughts on distributor?

The difference in the OE and hi-po distributor is the rate of timing advance with the springs. The vacuum advance canister on the side is listed as adjustable on the MP unit. Or should be.

On your stock unit, you can install one or both of the quick advance springs. There like 2$ from MoPar. You may not need both, the advance is preety quick with both.

If you want a new distributor and do not want to go through MoPar, look through the Summit racing and lok up ethier Accel or Mallory.
Mallory makes most of the distributors of most aftermarket companys.
MSD also has a nice vacuum advance version, but I have not personnaly used a MSD distributor. I have had in the past a Accel and a Mallory. I like the Mallory. But there are sooooooooooo many from Mallory, you had better ask for help on it. I have to.