[BullF-16]

Just took the car out on the back farm roads here in NW Texas for a little boost/AFR test. Got the car up to about 10psi and the AFR was down at about 10.5 couldnt really stare at the gauges, was more concerned with going straight!

Anyway, let off in 4th and checked the rear view and could see some smoke out the back end and burn oil smell prevalent....the smoke was actually dissipating after letting off throttle.

On my dyno tune after the motor install the car was having major blowby thru the rear main. I was behind the car on most of the pulls and did not notice any smoke from the tailpipes. Only on the ground under the bell housing. I am running a Monster catch can, it is plumbed correctly and i drilled out the drivers side valve cover port per Traceys recommedation.

I was running the oil cap breather with a check valve on the tune but as you well know we had bigger issues with the P0606 and reduced power mode that took about a month to figure out.

Anyway, i noticed a couple weeks ago that my shop had removed the checkvalve from the breather. This checkvalve allows a little metered airflow into the motor but none to escape. I think my shop removed this check valve to eliminate the crankcase pressure problem.

I know Tracey at Rx says the checkvalve is necessart to not allow un metered air into the motor and could affect the tune. The car drove wonderfully with that open breather BTW.

I ordered a new breather from RX and put it on and just now discovered the car was pretty rich on the AFR gauge at 10.5 and even lower to 10.2 when under boost. Also had the big cloud of burning oil thru the rear main on the exhaust.

So, i put the open breather back on. My tune is a combination of Speed density and Maf.

How does one properly vent these motors so as not to blow seals or God forbid break ringlands???

I thought the Monster Can was the ultimate solution. I am having doubts!

Help