B18c swap pcv issue

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D15demon

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I have 2000 civic with a b18c JDM gsr swap. I’m having an issue with my pcv hose expanding/collapsing during certain rpm (collapsed at idle expanded at higher rpm) pcv valve is fine so would it be the hose that’s bad?
 
If the PCV valve is good, rattles when shaken, passes air, etc... then it sounds like a bad or incorrect hose.
PCV hose should be stiff not able to be squeezed easily, so that it can stand up to vacuum.

You can get a brand new Honda OEM hose for about $20

Fairly cheap to swap that out. Might find another issue once that is cleared up, but might as well start with the cheap and easy options
 
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