I agree that a PCV system is a good idea and will help with the problem. What may need to be addressed is the fact that you may have too much blow-by which is caused by worn rings. If the engine is tired the PCV system can only provide some relief but may plug up in a short time.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine