New turbo 350 Sfi case by ati at sema

All of my convertors would work in everything I own. I run the heavier duty turbo 350 input instead of the smaller powerglide input shaft.
That doesn't really answer my question so I'll rephrase.
If you were to take your existing ati power glide and change the bell housing to say a ford smallblock, what torque converter would that combination use?.