PCV leak???

[SteveCZ28]

i had to remove my intake for my knock sensor install. but then got it all together to find out that i have a low input flow on the map sensor...basically meaning i have a vacuum leak somewhere. i removed my intake again, and i do notice my intake gaskets are kinda crushed..but i removed all of the pcv hoses (from behind the throttle body to the passenger side valve cover to the drivers side valve cover. but i was thinking if say one of the 2 valve cover hoses were undone would it cause a vacuum leak big enough for the map sensor to sense it???? or would it make no difference??

[Cutlass]

no the leak has to be between the intake and PCV valve to be a vacuum leak. Any thing past that is metered air flow through the PCV valve