I was cruising around in my GN and I noticed valvetrain noise and I then looked at my oil pressure and it was down to 10 psi. I was close to home so I drove it a few blocks to my house and shut it down. I noticed that oil is leaking everywhere and the oil pressure drop was in fact a massive oil loss. I haven't got to look at the car yet, but I plan to. I don't know what could've happened, rebuild only has 3k miles on it. It was built by Dave Roland, I hope that it's something simple and that the loss oil didn't cause the bearings to get chewed up or anything else. I just spent a pretty penny rebuilding this block! Any ideas?