Quote Originally Posted by Good Wrench View Post
The only thing now i'm wondering is if I have too thick oil in the car. I'm running straight 50w and I don't think I had this problem before I changed oil.
Why not change the oil back to a multi-viscosity oil rated for flat tappets? There's a possibility the heavy weight oil your using is causing lifter issues. Also how tight is your valve lash, how did you set it?

Brad Penn oils, HR oils, just a few that come to mind and maybe the Shell Rotella that members here prefer, maybe they'll pipe in with a recommendation on the Rotella type to use.