I just rebuilt the 390fe in my torino after it had about 80k miles on it. It was my first time doing a complete rebuild, but everything went smoothly. Engine started fine, cam break in went fine, and it drives great and strong and sounds good. Problem is that it smokes a lot through the valve covers, white smoke. Driving without the hood on the car, you can almost not notice it when cruising, but its obvious at idle, a guy even came up to my car at a stop sign to make me aware of it. Is this normal at all after a rebuild? I figured maybe it's all the grease I used burning off, but it doesn't look to be getting much better, although I only drove it maybe a mile or two. If any one has some ideas on this, I'd appreciate it. I figured I might try putting in some thicker oil, it has 10w-40 with some zinc additive right now. Also, theres no smoke through the exhaust.