[mcarbaja]

I have a pontiac catalina 1964 original 389 motor. I took off the valve cover to look at the rockers and change gasket. turned engine on and noticed oil comming out of every rocker except 1. left it running for 10 minutes and only a little oil build up in the rocker. it was not dripping oil like the others. The rockers are original stamped steel. I removed the push rod to see if something was stuck inside but was clear. installed it and still the same. What could be the problem car runs good the rocker moves , its the first one on the driver side. I notice that before but thought nothing of it. I notice that about 8 months ago but did not think nothing about it. what could be the problem thank U MIGUEL