i know that i've seen pix of this done on a b-series motor but dont remember how it was setup? g2ic is down so i cant search there otherwise i would have already found the pix. the idea is weld a plate over the hole on the back of the block with a bung in it so you can run a line from that to the bottem of the catch can and then you just mount the pcv valve on the top of the catch can with a little breather filter on it. the thing is where does the extra line going to the oil seperator go now? im assuming you either run it into the other line that goes to the back of the block. am i right in saying that? thanks mo