WOndering if I might be able to get some insight from all the knowledge that seems to be sourrounding this thread.

I'm seeing massive vacuum in my block. Last sunday I pulled out of my driveway and got a few hundred feet from home when I looked in the mirror to discover I was fumagating the neighborhood. Some quick troubleshooting, after refilling the oil and I have determined that the block is seeing considerable vaccum at idle as indicated by extreme difficulty removing the oil cap and the engine stalling with the cap off. ANyone have a recommendation on what valve might likely be the immediate culprit? I have replaced the block breather with the 034 silicone/billet setup. I have an'03 post split so I hahe the funky double valve coming off the block breather hose. I have oil seeping through the block breather line and the 3 way line off of the valve cover to the pancake valve, all 034. System is stock configuration except the B7 catch can that has been plumbed in afterthe block and valve breather lines join and before the pancake valve.

I have been through this thread twice and been following it for some time but I havent gotten to replacing anything. Yeah I know, dumb move!