I recently bought a 38 Pontiac 6cyl with all original parts, still runs fine, except one question. I plan on redoing the whole car, but for now I'd like to have it running how it is. There's about a 2" pipe that comes out of the engine block right below the exhaust manifold, and goes straight down and is open....when the car is running it's fine, but as soon as I start to give it gas, oil, a whole lot of oil comes flowing out. What's the deal with this pipe? thanks.

-Brian