Questions about a 2006 5.7

We did swap to eagle pistons. I guess I just need to know if these engines are generally noisy at idle. Just humms when the loud pedal is mashed and absolutely no missing power at all. Just figure to live with the noise until it breaks before changing the cam all over again.
Yes, they will be noisy at idle, the lower the idle the worse it's gonna be. My race car idles at 1500rpm with a high volume oil pump to guard against that issue.