I am currently running a PCV valve on my 355 in my Z.It is a non cc 355,Weiand Stealth,Speed Demon 750 DP,Comp Xtreme 274 cam,SLP 1 3/4" headers,no cat,Flowmaster cat back,yada yada yada,you know the rest.My question is should I lose the PCV valve and just run a breather on each side of the motor,or leave it how I have it now,one breather on passenger side and PCV valve on driver side hooked up to port on carb?What are the pros and cons of running it versus not running it?Not worried about emissions being as this is the only emissions type device left on the car.Thanks for any and all help.

 

Performance wise it won't do anything. IF you want to get rid of it you can always cap the pcv vacuum ports on the intake. I wouldn't do it though. The pcv valve gets all the blowby-gasses out of the crankcase, which is not a bad thing because bearings don't like acids........

 

Thats why you put a breather on the vent those gasses out.. and my beat 305 has plenty of gasses to vent.. hehe

Patrick DeGrosse Jr.