Little bit of a rant about Mopar heads...
I have a total virgin set of 576s that I am not too proud of, not rusty, have been inside since dissasembling the motor, and have already ported on my nice 308s, so that probably won't work for stock class.
You can have the 576s for $100 if you want to pick them up. They were off a 78 360, and the valve covers go with them.