Yes, there are two holes for converter bolt access. One just above oil pan rail near starter pocket. Then another at 6 O'clock position where you can tighten up while accessing the but through access/inspection slot in bell.

The block plate is there to protect block and locate starter. You could do away with it and have to alter your starter and converter spacing. The block plate also has a hole off each side for mounting bracket to your frame rails. This is used in place of a midplate.

Once I have everything in my car you guys can see everything has a purpose. OEM uses a converter sheild to keep dirt out. This does that and allows protection from converter explosions. Never had this happen personally. All of the converter/transmission professionals I have spoke with are in favor of the plate. I too had thought of doing away with it until they encouraged me not too.