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I know this is an old thread but having the same problem.  Can anyone help?

Got ahead of the curve on this one. Last year I had my tired A/C Compressor swapped out for a new one. Bought an A/C Delco compressor new. Flipped the switch the first hot day around here a few weeks ago. Nothing. It was the "every year's plague" of re-filling the system with fresh R-134. Only this year this trick did not work. Nothing. Fortunately I have found a place that is willing to work on these 3.4 motors, a local Chevy Dealership with a mechanic that's got a 53 years experience track record who knows these motors.  As usual I buck-shotted this repair, I sent the car in with a trunkload of NOS parts, even including another new Delco Compressor. Turned out the low pressure line and the valve was toast, major leaks. All is well (and cold) now, just in time for a long South Carolina summer. Which starts this week, going by the predicted temps.  Looks like I get to put that New Compressor on the shelf for next time. And we all know that will be a next time down the road........

I agree.  I think trying to convert a 3.1 to run on a 3100 PCM solely for derby use is taking things a little too far.  Sure, you could probably get it to work somewhat without all of the necessary sensor inputs....but would it really be worthwhile? If it were me....i'd either run the thing stock or carb swap it.  Trying to get it to run properly on an OBD2 PCM wouldn't even cross my mind.  

32 Clicks of Rebound Force Adjustment (I'm assuming single)

The softer the spring one uses the stiffer the dampening that's needed to keep ones ride from *floating*.  Are these Rev9 shocks single or double acting?