20-02-2013, 06:02 PM
Sounds like you have maxed out the pump if the revs are shooting up with any more max fuel. I have always found with mine that if I take the idle too low with the rear idle screw it's never settled. Taking the throttle down a spline does work, but you do lose some throttle travel and ruins throttle response.
What turbo you running?
What turbo you running?