whistling sound coming from engine

ok i have has a whistling sound coming from my engine for a while now.
its really noticable when its cold out and when i get on the gas.
im thinking maybe a cracked vaccum line or intake hose?

if anyone has an idea of what this could be let me know thanks

You're probably right about it being a vacuum leak, take a look/listen and replace any leaking hoses. I have also seen bad throttle body gaskets cause this.