I'm not sure if I'll get flamed here, either way, a friend has a focus with the 2.0 16 valve. Runs like crap, I already know it needs plugs. But, there is a vacuum leak and with using an inspection mirror, it looks like there is hole in the intake manifold where all the vacuum lines connect to at the back. Has anyone seen this before. It's hard to tell with the mirror but definetly has a hole.