Junkyard 5.9L Magnum + Edelbrock LA heads build

IIRC, the Edelbrocks do have a groove up the side of that one rocker stand.

True but that's one of the middle stands (second from the front/back), this one is on the end closest to the back of the head. I confirmed by threading in a rocker shaft bolt and I couldn't get any air to go through with the bolt in.