Gasket under the filler cap? Didn't know it had one.

I did all the work myself following the guides on this and the other site. I worked as a mechanic for a few years back in the day before pursuing a different career but that's a different story. I cleaned out the port where the breather box goes into the block and the one on top. Is there more?

The old system was definitely plugged and there was carbon blocking the part by the vacuum tee. I also used a larger vacuum hose instead of the stock part under the intake on the advice of a someone in a thread that had done the same with improved results. After the repair, I didn't notice much difference in the smoke at the dipstick or pressure at the filler neck. It was passing emissions at the time and the light was off but this is going back about 4 years or so. I can redo the glove test and see but imagine there is still pressure there.