Need some help !!!!!!!!!!!!!!!!!!!!!!!!!

I am just about at the end of my rope with this. I don't know what else to do. I have put around 60 miles or so on this engine as suggested. I pull in the garage after this last trip and pull a couple spark plugs and I look into one of the cylinders and I can see where oil has dripped onto the top of the piston. I know it came from the intake valve because of the previous inspections I have done when I pulled the intake before. This time I put Permatex RTV around all the ports just for the heck of it. I have not pulled the intake yet, but will, just to see.