I have a 98 5.7L vortec that i am trying to tune out a drop in idle rpm when the a/c compressor cycles in,the rpm drops anywhere from thirthy to fifthy rpm.I can also feel the compressor cycle in when I am at a steady cruise at 65+mph.What is the parameter that I should be most concerned with tuning to eliminate this.The only modification to the motor is a mild camshaft.thanks for the support!