which torque converter is compatible with Magnum crate engine?

This is a very helpful site put together by FABO member LXguy.
Details on the converter are in this link;
http://www.magnumswap.com/automatic-transmission-details/

Thanks, subcom!

So it looks like since I have the flex plate, I'll need a neutral balanced torque converter...ok.

The link also says that I'll have to enlarge one of the holes in the flex plate...I presume that this won't be enough to throw off the balance significantly?? I guess I don't know the level of precision that we're worried about here.

Any brand/model that you guys tend to prefer for the A904?