Here is how I modified the cone filter to accept a breather line. The tools are;
-cone air filter.
-clear pvc tubing 1/4inch OD.
The first step is to remove the air filter.
Step 1: FITTING IN THE BREATHER LINE.
I wanted the tube very snug into the hole to have an airtight seal.
Step 2: ADDING TO THE ENGINE.
Step 3: COMPLETION!
I started the engine and it ran well! The idle rpm was a little higher from this modification plus the engine idled smoother and I'm very happy about that. Hopefully the fuel economy can improve a bit in time.
After less than a month of implementation, the fuel economy of the engine has almost doubled! Also the engine idles far smoother and vehicle acceleration is better. We are extremely pleased here.