Mopar Electronic ignition issue

I'm using a standard single points distributor on my 67 Barracuda 273, it's a Formula S so it's a HiPo 273 4BBL. It runs okay with the points dizzy, but I decided to go electronic with a Mopar electronic distributor and orange box (the box is more than 20 years old and genuine Mopar unit).

The only way I could get the 273 to idle was with 40+ degrees on initial timing, and it didn't run right either. Okay, so I thought it must be the distributor I'm using. To confirm, I borrowed a good distributor from a friend, after installation it does the exact same thing. Have to advance initial timing to 40+ degrees for it to idle.

Damn, so in the end I took out the electronic dizzy and box and put the points unit back in, set the timing at 10 degrees BTDC and she idles and runs fine. Any ideas guys on what's happening with the electronic units?