I was at the scrap yard recently when I spotted a 'bolt with a powerglide in the corner. What really caught my attention was, no draft tube and what appeared to be a factory PCV. The valve cover was a center fill type, it had a hose fitting about 3/4 of the way back that probably went to the air cleaner. (which was gone) It also had a hose fitting about 1/3 of the way back that I'm guessing went to the pcv and another fitting screwed into the leg of the intake. It all looked factory done to me. I've never seen a bolt set up this way, if anyone else has, I'd sure like to know. Next time I'll try to get some pics.