PCV system

The PCV is an emmisions thing only! Trust me it was in the emmisions section last year at school. The main issue with a PCV is when you go away from stock how can you figure how you need it to flow? I was running mine and the Speed Demon did not like it one bit so right from Don at FBO I was told NOT to run the PCV. You wotn have any pressue in the crankcase provided you have a breather on either side. PCV's haven't been around forever. Back in the day it was just a road draft tube. How many race cars have PCV's?