Clyde! you're alive! , well at the last autocross i filled my catch can twice on a 35 sec course. there was heavy transitions and a right hander that went over a crest. i dumped out half a quart of oil. maybe its also time to either change PCV valve or just clamp the PCV all together.

 

Technically, 13.10.E prohibits you from clamping/capping the PCV if you're running Street/Street R or STR (can't alter the PCV system). It would likely be OK with the local STR crowd, but don't run it like that at a national event.

Edit:

13.10.E is what explicitly allows the oil catch cans.

 

The easiest way to explain it is, the can is an inline filter, just put the can in the middle of the PCV line, and the breather tube if you want. The breather will allow small amounts of oil through the throttle body that will build up over time, but the system was designed to work as a whole.

If you don't have anything stopping you from breaking the stock system, I would run both lines from the valve cover to a vented can, and cap the intake side.

 

i have this setup too. have no problem so far