Pardon the seeming-unrelated question--Do you have the thermostat flaps on your engine hooked up?
If not, is the pulley wheel still there? If not, you need to find the hole where the mounting bolt used to go, and put a bolt in it. That's a through-hole to the inside of the engine, and will spill oil.
Alternate question: Got the breather hoses into the heads hooked up to anything? Are the hoses tight?
Third question: Added oil lately? Maybe miss the filler neck with just a little oil? "Just a little" coming out of the bottle looks like "Exxon Valdez" when it gets down to the driveway...
Uhm, not that I know anything about any of these from personal experience or anything.
--DD