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Ok , im not a tuner :-)
AFAIK the vvt cam phasers on our engines are inactive at idle ie they sit at zero offset.
This is probably in the ecu code and probably because their is insuffient oil pressure to drive the actuators reliably.
I am not familiar with the coyote engines or ghost camms, but i would suspect they have deliberatly set up the cam phasing at idle\rest position to produce the lumpy idle.
This would not be possible in our engine unless you physically adjusted the idle\rest cam phasing, which is then going to throw out the rest of the phasing ie you have to account for the offset you physically put in at idle, how you would achieve the physical offset would be another problem unless you reground cams or just jumped a tooth on the timing chains.
I doubt you could achive the lumpy idle effect without that , ie just with fueling or timing, and their is a heap of tables that adjust idle parameters, and probably a lot of ecu logic that not known in the idle area.
even then its never going to sound like a V8 :-)
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