Which one do you use?
How is your system set up?
PCV or to
Atmosphere.

 

I found a few threads with some answer that might help you.

https://www.performancetrucks.net/fo...ations-537897/

https://www.performancetrucks.net/fo...-boost-538436/

 

Here is the ine i use on my truck and CTS. I have it hooked up via pcv

PVC Oil Catch Can - Custom Product

 

Mike Norris Seems to be a popular one I see.
CHODA used one on his build with good success.

 

Mighty Mouse PVC catch can. Has a check ball built in to dump any internal engine pressure. Nice product.

 

PCM of NC Catch Can Kit I've ran on multiple cars . This is all you need with the check valve .

 

Both valve covers to can to atmosphere

Bough mine from a guy on ebay who makes a bunch of different configurations

 

Anyone with breather type cans notice oil smell inside the cab while cruising.

 

I have a MM pcv can that I decided to just vent both valve covers to atmosphere. I have about 1200 miles on the new motor and setup. The first 100 miles getting the motor broke in I had a small break in smell. After that I have never smelled any oil. I did run a vacuum line to the can do the crank case would have some vacuum on it out of boost.

I ran 2 #8's from the valve covers to the can also.

 

Yup, I like it, amazed how much oil it actually picks up. I also use the Boomba racing check valves.

Check Valve, 10 mm, 3/8", aluminum