Rockers were replaced with FPP bushed rockers. Some `MR' stands for the shafts were replaced with FPP end-support stands. Since I've never viewed the end shaft displacement at high rpm, I really don't know what the actual effect are.
I also cut the top off of one of a really cheap pair of rocker covers. I then bolted the cover in place to view oiling when the engine runs. It took a long time for the shafts to warm up enough to bleed oil. It was interesting to watch, and makes me belive one of the valve seals is broken... But I wasn't able to get any additional oil into the valve by squirting oil onto the valve areas.... maybe next time I try this, I'll dump a quart right into the open valve cover to see what effect that has. It makes me wonder if the internal oil leak is due to intake mating problems. I do know I'll open the engine up this year to see where the oil is going...