idle RPM and IAC counts are not responding

[mmigacz]

The winter is finally starting to lift in Wisconsin. I pumped water into the block of my boat and started messing around with the idle today. Below is brief summary of my setup:

-351W ford engine
-ski centurion, straight inboard boat
-mild cam
-gt40p heads
-1227747 ECM
-fuel pressure 18psi
-5.7L injectors (truck)
-no EGR
-no VSS
-no O2 feedback (running in open loop for now)
-No Knock sensor (esc)
-Manual transmission set-up
-I do have a wideband hooked up
-I do have an emulator

I got the engine to idle pretty good at 1050 RPM. The crazy thing is, the closed loop idle is set at 850 RPM. The other crazy thing is, no matter how much I open the throttle blades (idle adjustment screw), the IAC counts will not come down. They seem to hover around 79 counts. I attached my bin and and a log file. I let the engine idle from the beginning of the log to about 48 seconds.

Any idea's why the idle won't come down or why I can't get the IAC counts to lower?

burn 03-29-14.bin

new 5.xdl