Originally posted by thebigsy
Thankyou Mr. Erikson...

So, swapping one of the breathers for a proper PCV system (whether it is a closed or open system) will make no difference to the crankcase pressure, but putting 2 breathers on each valve cover may give my engine the breathing capacity it needs and therefore lower the pressure?

Is it a common problem for 2 breathers not to be enough (keep in mind that I am not sure if crankcase pressure is the problem and adding 2 more breathers is not something that I am going to do unless I am sure)?

My engine is built from all quality parts and makes 500hp and 500ft/lbs. I do not rev it past 6000rpm. All components are brand new and were assembled with attention to detail. This motor has only done dyno time and about 20 miles.

Thanks again
Yes,it is common.On all the circle track engines I have built over the years I install two breathers per side.Even in street driven engines at this horsepower level it becomes important.