Vacuum Advance / Boost Retard unit

welp, last night was pretty interesting.
I got the unit mounted up to my test dizzy.
1. I cut the arm off the stock mopar unit at the step down ( the junk yard unit ).
2. Drilled 2 new holes in the retard unit and bent the mount plate as to match as close as possible to the outer housing of the mopar distributor. Removed retard stop plug because it wouldn't allow the can to sit flush against the dizzy body.
3. Installed the piece of mopar arm into the distributor and slid the retard unit into place ( verifying that nothing was hitting throughout the travel of the vac advance arm)
4. Tack welded the mopar arm to the retard unit arm. Removed and welded and cleaned up...
5. Reinstalled the unit and bench tested... :D

Oh, I did test the unit before going through all of the trouble and the unit works just like the dual diaphragm unit as far as vacuum is concerned.
--bottom port: vac = retard / boost = nothing ( no movement )
--top port: Vac = advance / boost = retard

I'm going to try to get it added to the distributor that's in the car sometime soon, but I still need to check how much advance / retard is at what amount of vac / boost