which way does flexplate attach?

The way it goes would suggest or appear as if those bolts to torque converter will hit the block. They do run very close. I dont have a torque spec for those bolts to crank or TQ.
Check the thickness of that flexplate and the length of torque converter bolts very closely. If the bolts are too long and dimple the converter shell behind those welded nut blocks this can damage the troque converter internally.