I'm thinking about doing away with the PCV on my bracket car and going to two breathers. It is never driven on the street. I'm thinking, and would like comments on this, that the PCV valve is pretty useless for this application. Since the only low speed part throttle use is on the return road and in the pits and lanes, pressure buildup with two breathers should not be a problem. At WOT there is no vacuum so the valve is closed and only the one breather is available to vent the block. With two breathers, it would seem to me that the crankcase would be better ventilated. Thoughts?

What I have used are 2 breathers and check valves from a mopar with hoses running down to bungs welded into the headers. I have used this setup on many bracket cars, and I believe now they sell a kit to do this. I just go to the junk yard and find some breathers and check valves, make the bungs from black pipe and use black 5/8 hose to hook it all up. Just a thought

No reason not to as it isn't really doing anything except maybe slightly diluting your intake charge during staging or returning from a run.
Two breathers work just fine on almost anything we do & on most they are both on one valve cover if they have a breather at all :D
What I did on a 427 SB with Brodix covers was come off the back of the covers with AN lines to a small remote catch tank on the firewall with a breather as the guy didn't really want holes in his covers.
Looked pretty cool & worked very well.
This BTW is primarily an "off road" street deal

Thanks for the comments. I'll be changing over in the near future. :D

I would have to think that on a drag strip only engine the breathers should be fine... lots of people do that.

On a side note but slightly related I know one guy with a 14-1 BBC running on Methanol who was useing breathers and pan evac system and even getting decient heat in the engine had some " milking " problems with his oil...
He took off the breathers / pan evac system and hooked up a closed PCV system silumar to a stock GM system and it cured his milking problem... But again that was with Methanol and well thats just nasty stuff.... But the PCV system somehow seemed to work better.... Maybe getting the positive air into the engine as well as out of it helped... The Pan evac just let air out with no cleaned fresh air coming into the engine.

But with gasoline being no where near as corrosive as the Methanol it should be fine.

Alky is pretty nasty stuff. Oil changes are part of the routine.

I have two breathers, no pcv.
I drive to and from the track, as far as 1 hour 45 minutes to the further tracks.
No problems to speak of.