This has been bugging me for a while, '03 RK Stage 1, SE Breather, V&H Ovals, SEPro Race Fueler, The idle is around 1150RPM and is a little erratic, it'll go from 1100-1250,sometimes drop back to 1050 its also slow to go back down to idle when I come to a stop,or blip the throttle, it's been acting like this since before the Stage 1, but then the idle was 1050 to 1150. I lubed and adjusted throttle cables, throttle plate opens fully and snaps back fully shut, doesn't seem to be any intake leaks,(WD40 sprayed around the seals) no codes thrown, amount of fuel in the tank has no bearing on it either. Any Ideas?? Thanks. I only have a multimeter and didn't want to go on a sensor replaceing witch hunt.