Stumped! been through the Probst book, searched all over online, nada. The rig will run (but rough) but not idle. If you take the MAF conn off it idles and runs better (limp mode). Engine is a 5.0 (non HO) take out. All the parts were untouched from the donor short of Ryans harness. Vacuum is good, timing is on, codes are the usual for a non-smog engine. Ideas?
Rick-
Rick-
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