This is the oil filter adapter I am using, first off I think I have it in there correctly, if I am backwards let me know, but what I don't like is....there is a hole that leads from the oil filter area directly back to the rear bearing and when the adapter is in place it totally blocks the hole that leads from the rear bearing to the oil filter, now I see the slots in the top of the adapter that should let the oil through regardless, but when the somewhat wide rubber gasket is in place it totally blocks the hole? Is it able to get around the rubber gasket you think? or am I restricting the main channel of oil to the rear main bearing, causing possibly an oiling problem, I do have two of the old style canisters for the paper filter style off of my 327's but I would have to check to see if they are the same for a 409?