I've got a name-brand replacement PCV valve in the Challenger, since the original was rusted up when I got the car. This stupid thing whistles/chirps/burbles/rattles any time I am idling in gear or at low throttle. Neutral does not rattle. I also am suspect that is adding to the big flat-spot off idle. This is with a super-six manifold with a 318 Carter BBD.

What is the magic part number that is REALLY correct and wont do this. It's bad enough being massively underpowered and lacking that V8 rumble, we don't need to add drowning tweety-bird to the list.

Note: I love my slant and think it adds tons of character to my A93 Deputy optioned '71 Challenger. ...but a muscle car it is not.