air comes in from the line coming off the intake(not manifold),through the engine, out the other side through the pcv valve, and into the intake manifold, then burned up turned to sludge/whatever. is the engine sucking the air through from the intake manifold, or is the engine pushing it out? both?? pages missing from old 88-91 crx manual? tried search function? if anyone has time, please explain. i want to install catch can? picture of a b16 with air direction arrows would be sufficient for my fried-31-year-old-brain. thanks

 

Run a line from the breather tank on the back of the block to the the can... that's the "out" line from the motor.
Then run a line from the tank to the pcv or manifold... that's the "in" line to the motor.
Hope this helps...