Souped up GA Misbehaves badly.

Keep getting an engine code and a whistle from the pcv makes engine run like crap. I changed the pvc but it still whistles.
Vague question , what other vacuum hoses can make a whistle loud enough to hear over my damn loud engine? Sounds like a turbo and its not the intake.

What code are you getting?.

What code are you getting?.
I dont know what code. Its the Check engine light thats what I meant.
I think its a vaccume leak somewhere but I dont know what line would whistle like that.

Get it scanned. You should at least know why the check engine is on before you try to fix the problem. Good Luck

John