I've just read this whole thread but can't remember the reason for you using the auto other than the fact that your foz is already an auto...
I say this as over here I've had the pleasure of knowing two subi's that have the H6 conversion, both are manual. I've heard many say go the EJ20G over the H6 as the H6 is gutless. What they don't realise is that they're running around in a factory auto H6 outback...
These manual H6's are the duck's nuts! They have ample power on tap at any time you need it. I was blown away!
Anyway, here's a write up of one of the fellas who did the conversion
. Both vehicles ironically came from the same work shop at different times and have ended up in Victoria from interstate. Lucky me
I reckon you'll get a pot load more from this engine if you mate it with a manual... My 2c that I thought I'd share with you, it is a conversion after all!
*edit* also with the rack from the donor vehicle that has the plug that you broke, if it is salvageable this rack is one that gives you slightly heavier steering at speed to reduce floating from the power steering feel becoming very light. If you could shoe horn this into the foz it would another feature that I reckon you'd love. You'd probably have to change the rack and tie rod ends for it to work, simple really!
Edited by el_freddo, 23 July 2011 - 10:42 PM.