mine stalls often and its only when turning regardless of A/C on or off. But it hasn't done it since I removed the superchip, I think it's b/c the chip sets the idle rpm lower it used to dip down to 300 w/the chip removed it idles @ like 600.

 

I think if you run the 89 it may clear it up. Its been a while since mine stalled and I run the ac all the time here in Nor Cal. Although some legitimate problems may exist I think that fuel has a lot to do with it.

 

Are we talking about manual or auto equiped trucks here?..Sounds like your all letting off the clutch to fast...........lol