If your interested in a Wagner PCV, here's an opportunity with out crappy cdn$. I have reached my objective buy in- just passing it on, until end of March.
https://67-72chevytrucks.com/vboard/showthread.php?p=8690032#post8690032
Edelbrock Hi Flow Vortec TPI base and runners with functioning egr valve and corvette EGR takeoff, fuel rails, oe fuel pressure regulator, Multec injectors (cores). Gasket matched and casting flash cleaned up- no major porting effort. Oem ported plenum. Comes with all vacuum ports and hei cover...