Lunati VooDoo Question

My friend has the Lunati Part Number: 10200702LK ....Previous Part Number: 60402LK Hydraulic Flat Tapped setup with headers..340 Cuda ... I don't find the under the hood noise much different then my current Purple Stick...

I do find that my idle is rougher then his though that is why I was looking at the Voodoo...

This is a learning curve for me lol