<ul><li><a href="http://www.neonrick.com/oilair_howto.html">can of catching</a></li></ul>

As long as it's not vented to the environment, which it appears this cc is not, the environment should not be affected. Actually, it may be beneficial burning less oil.

If your state physically checks for tampering of emissions equipment, you may have problems.

back into the block/oil pan... anyone think that's a feasible idea?

I wouldn't mind doing that on the turbo motor I'm building for the 4k, cuz draining a catch can seems like more work than it's worth :-P

The PCV system evacuates blowby, which consists of fuel-diluted oil and crankcase fumes that contain acidic compounds and moisture. All these things are precursors to sludge. By recycling that sauce you contaminate the oil. I suggest you either leave the PCV system alone, or you install a catch can.

that's a good arguement of why NOT to do that, thanks mori. I haven't done it yet, but was curious why people don't do it...

Apparently even an adjustable fuel pressure regulator is illegal in California. Unbelievable. Don't they have better things to do, like stop crime?