wispering sounds after plenum install

[johnnyt03gt]

just installed trick flow plenum and K&N fipk attached all hoses wispering sounds under load
is this normal or did i miss a vacuum hose idles perfectly runs strongly ?

 

[evil281]

mine does the same thing

 

[CENTENNIALSTANG]

normal

 

[maxima]

normal!!!

 

[johnnyt03gt]

THANKS