Break In Disaster????????

Is your valve cover hitting the intake, holding it up? The gasket wont crush, causing the leak.

Had this problem with a MP Valve covers.

If your valve covers were sealed you would even know you had the leaky rocker shaft...........

are you sure its not leaking from the back of the intake manifold? Clean that hole area with brake cleaner, so it's dry. start it and check with a mirror.