Your post is not quite clear.

Are you allowing un-metered air to enter the "seperation" cannister and them the intake? (breathers?)

The flow-through cannister idea itself is a good. My last car had one of it stock. Works quite well.

2000 SVT #674 - Check it out!

Whoever coined the phrase; "If it ain't broke; don't fix it" ~ Just doesn't get it...