Any more info on this? Were there bosses there to drill and tap or something? I don't remember any on mine, but I don't remember looking either.
I've planned to cut the starter pocket out and relocate it to match a 130T flywheel. I was going to drill a flat plate to match the pattern on 727 bellhousing and then use that to fix the starter pocket location before welding.
Really rather just drill some holes.