1992 Honda Civic Insanely High Idle

Alright well for starter's I have a 1992 Civic SI, with a B18C( Integra Type R) and a B16 head. Fully built bottom end with J.E low compression piston's (9-1). Eagle Rod's, Walbro 255 High Pressure Fuel Pump, RC 750cc injector's. Garrett t3/t4 60 trim turbo (18psi of boost), tial sport wastegate, greddy type S blow off valve, tuned on eCtune by a guy named DK. And I'm probably missing a few thing's. My problem is when I first turn on my car it idle's at 3,000-4,000 it range's. Once the car get's warm to operating temp's it idles at 2,000 rpm's. It's really high and you can imagine how loud the car is. I don't know what to do to get the car to idle down, i've turned the idle screw all the way in and it didn't change any. Have any idea's how to make the car idle lower?