Carb is whistling at hot chicks...and dudes.

Ok still whistling. I warmed her up real good, still hear whistle, removed air cleaner and whistle gets crazy loud. Took can of WD40 and sprayed it all over, every single gasket on the carb. no change. Even sprayed it on intake manifold, no change. and why does the whistle go away when I step on pedal? any other ideas?