[Gmecm] 7747 High BLM at idle

[Charles McDowell]

My truck has been running okay, but I finally decided to get around to
gathering some more data to fine tune things.  I hooked up winALDL and drove
around for a while.  As I drive around, all the BLM table values in winALDL
show 124-133 or so - not bad really.  The weird thing is that when I pull in
someplace, put it in park and idle it, the idle BLM cell (800/30 in winALDL)
just climbs and climbs up to almost 150.  That same cell shows something
like 133 if I look at it before starting to idle.

Any ideas what this could be, or where to even start looking?  It's a 7747
for a SBC 350 with automatic, converted from carb.

TIA


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