E-Ridium 63

Hey just polling for some feedback here. I've never owned a V8 bruser before and was wondering if this is normal. Most of the time when I'm stopped at a light, the engine idles smoothly at around 600 rpm or so. Needle stays planted. But sometime intermittently, i can hear,see and feel the engine blip somewhere between 100-200 rpms. If I'm on the brake ever so lightly, I can even feel the engine creep the car ever so slightly. Anyone else see this or do yours idle at a steadfast rpm when idling? Thanks for any input.

Cheers

e550 87ss

a/c on? electric fans coming on could cause fluctuation? 100-200 rpm isn't really odd in a car when you come to a stop with your foot on the brake. If it fluctuates at idle in neutral or park without any electrical or mechanical draw something might be wrong. constant fluctuation when you come to a stop would indicate something is wrong...