Restoration of my 70 Dart Swinger (Germany)

First i thought i take the stock converter for a time, but the bearing was destroyed and as i looked at the Convertershaft it was damaged too.
So i will take a new one, but still don´t know which one is the best for me. I have 3.23 Gears in the Rear. I just have to build it up.
What do you guys think about the converter question? I have no idea!
Thought about one from Edge Performance. My Friend had one in his 67 Coronet with a 360 and he was thrilled.
I think this one:

http://www.edgeracingconverters.com/index.php?main_page=product_info&cPath=7_9&products_id=19

The Problem with the Heads is that i don´t have any references because i build a complete new Setup in the Car. New Engine, new Trans, new Rear..8)

We will see! But i think i will be satisfield!:cheers: