I did get my money back. But it was like pullin' teeth. Guess he had enough of Terry and me, so he caved in. It may be correct for GTO or B body. He seemed to think that all V-8 got them.
The reason he stated for the different length leg, was that the rear intake manifold bolt should be a stud/post. And that does make sense. But all the '69's I've seen use a bolt, not a stud in that location.