I hope someone can tell me where to start looking and maybe point me to what's gone wrong.
The car's an EP71 Starlet turbo, CT12, bit more boost etc.
The situation: The car had no air filter when I got it, so today, I put a temporary UNI filter on it (The oilable type), and at the same time, did an oil change (Put Penrite 20W-60 and new filter), did all the usuals, started it, topped it up etc. and also (This may be important) There are 2 breather hoses off the cam cover. One goes to intake manifold, and other to factory filter. The filter one was just going to atmosphere, oiling all the engine bay so I stuck a bolt in it

Anyway, went to drive home, came to the first corner, looked out the back to see white/grey smoke. I pulled over and popped the bonnet.
When I give it a few revs, it smokes tonnes. So I thought, hmm, maybe the filter's letting oil into the engine, pull the filter off, still smokes. So then, maybe that breather has something to do with it. I popped the bolt out, and WHOOSH, all this air comes out(The engine's off by now) and buildup??(slime) goes all over my hand.
Drove SLOWLY back to the workshop, not very far, and turned it off, and went inside and opened the door, came out, drove it in, and I give it a few revs, and I don't seem to see any smoke (Not great clouds anyway) and it's still got oil.
It seems quite like the time a TX3 Turbo of mine blew, but only that was continuous smoking. The turbo has very minimal play and still spins freely(Or freely enough)
Sorry for the long windedness, but I thought anything could be important. If you've got to here, thanks

Hopefully in all the toyota buffs on here, someone will know what i've done/what's happened!!
Any comments on what it could be, what to look at, check out etc etc would be much appreciated as I'm supposed to be driving the starlet up to auckland to live mid next week so need to get onto it.
Cheers again,
Kent