Well, I am just a piece of carp anyway, lol.

I am running manual brakes on my 65 Cuda, 11.75" disc/11" drums. Running the M/C out of a late M body, forget the diameter offhand, but the pedal is not as firm as I would like. I think it's a bleeder on the caliper location issue but haven't gotten around to verifying it yet.

I forget, it's been years, exactly what caliper I am running, I think M body and I flipped the calipers to clear the swaybar. This might have put the bleeders in less than optimal position causing my issue. Are you 100% sure the bleeders are at the very top of the caliper bore?

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.