Foxbody Burning Oil

I would check all pvc lines and make sure you're not sucking oil into the intake. If that's the case, a catch can could solve your problem.

Compression test does that, checks compression or the compression ring. Adding oil will help the compression ring seal.

A leak down test would help you find where you have a problem... rings, valves....

Typically, a puff of smoke on startup is valve seals, but could be oil being pulled in from the intake too.

No cats make a car smell like crap regardless of burning oil.

Yes, the pvc line end and the one on the valve cover.

After market pcv and grommet are well known for fitment issues, did you get Motorcraft?

I believe its just vacuum hose, regular hose will collapse under vacuum

which may be pulling out the pcv

crack was probably because the hose had aged and turned hard...

Use Fuel line/PVC/EEC hose. Others will crack, harden, or collapse (eventually). Make sure the parts person gets you the right hose, most will grab normal vacuum hose.

The catch can really depends on if that's your issue (mods, supercharger/turbo....or excessive blowby). Also, where it's sucking the oil in. Typically, you run one on the pvc valve side.

pvc valve>hose>catchcan>hose>intake

If it's the other side you'd run one on that side.

oil fill tube>hose>catch can>throttle body

Don't connect pvc valve side to the valve cover side.

Not all catch cans are created equal. I would pass on being cheap and getting the air/water separators from Lowes or Homedepot. I personally like Bobs catch can. Again, this is irrelevant if this isn't your issue.

When I disconnected a line, oil would drip out when it had a problem sucking oil. This was with a China cobra intake.

What mods does this vehicle have? Miles?