Anyone familiar with the oil vent box with two vents on the top? I replaced the vent box on my '93 850 (one vent on the top of the box) with this other style with two vents. I used a plug to cover the extra vent. But, when I had the car back together and started it up, the plug popped off due to the pressure. Now I am stuck with the issue of trying to plug the hole again without taking the intake manifold off again, but I want to make sure of a couple of things first.......

My questions: Is it ok to use the two vented boxes. If so, which vent outlet attaches to the flame trap, the one in the top center of the unit or the one offset to the left side (if looking at it while mounted on the block).

Thanks.