[JRyan]

Interesting Paul. We had the exact same problem with the K&N filter on the two Olds engines. We had never used them. Changed the oil in both cars one weekend then took them to our local car show. Mine lost oil pressure on the way back to the trailer at the end of the show. Thought we hurt something at Brainerd the week before. Couple days later dad started his car to move it and oil pressure came up right away. It sat there for a minute while he was doing some other things. Got back in and it had zero oil pressure. So dad had one of our usual filters sitting there. Put that in good oil pressure. Went and picked up another one for my car spun it on and boom good oil pressure. Needless to say that was our one and only experience with there filters.

Rick