1973 Dart Sport

why are bad pushrods causing crankcase pressure? and how are valve guides lacking oil?

That was before. I broke my cam in with my rocker arms on upside down. I ran it for a bit but noticed a lot of noise coming from the valve covers and some blow-by. Found the bent pushrods and realized the mistake with the rocker shaft back in january. I slapped it all together with some new pushrods hoping for the best since the cam was still fine but the blow-by stayed.