I've ran them, PVC, on all my cars including strip only race cars due to the motors never gets hot enough to boil the water condensation out of it but it will get warm enough to make water vapor usually so the vacuum from the motor driving in the pits at light part throttle will help suck that water vapor out of the motor at high vacuum
I ran two PCV on my pump gas Street and strip Duster, one on each side with a breather cap on both valve covers also, the oil stay real clean in that motor with that set up Sometimes we get lucky when experimenting, I was trying to get that motor to idle at a low RPM, 850 RPM in gear, with a big solid roller cam(260@.050 on a 108 LSA) and a six pack. That flat out work real well