I wasn't aware that the line was on the manifold. It has now been relocated. I don't have a whole lot of room in my engine bay, but I took a good bit of time last night and made sure everything fitment wise was ideal. The car is loud period, but I don't hear any audible engine noise. I'm sure if it didn't sound like a funny car I'd be able to hear a little better, but nothing is noticable as of now. Bearings stay pretty quiet unless they are pretty bad right? Could the crank be moving some letting oil by the main bearing? Would that explain the irratic movement in the oil pressure needle?