You can plug the vacuum port if you want to bypass the blow off.
Already got a new one hoping it will help with the idle and choppy throttle issue. Will get a chance to test see this weekend.
Those rotors look terrible. Where is all of that black oil from? I wonder if it's the blower oil leaking inside.
A couple of events ago there was a ton of oil blow by it was leaking from the intake so bad there was a puddle under the car in grid. That was before the pan got pulled and the discovery of the blocked oil pickup in the pan. Surprised the motor didn't spin a bearing. Ever since the new chains and catch can its had no issues and nothing in the catch can. It doesn't rattle and tick like hell when I start it like before.
What you probably don't realize is your laminova tubes are probably also completely clogged up. You will need to take off your intake to get to those and clean those up.
Your right ! They are probably awful 200k and the donor was rode hard. Tempted to pull it back apart but hoping next time it will be to put a turbo kit on it. They seem to really be buried in there :