[Ed Wright]

Played with closed loop, saw no need. Once I ran in enough different conditions to get runs in enough different Baro conditions, to get each cell corrected, logs always show correct air/fuel anyway. If it were in Closed Loop, it would not be making any corrections anyway.
The manifold air temp sensor helps consistency a lot. All weekend at Houston recently, it varied exactly one hundredth. First three passes over two days at No Problem Raceway last week, it only varied four thousandths, then it broke a lifter. Did not repeat that close without the manifold air temp.