Maybe with those banana groves the "rules" don't apply! Never worked on an engine with those, and "good luck" finding a FSM that says anything about the grooves. I just looked in a How To Hot Rod A Small Block Mopar book, and all they talk about is the banana grooves pointing down. In a How To Rebuild A SBM book and all they talk about is the holes pointing down. I would be very tempted to put it back together the way it was. After all, it can't be too wrong.