Holley COMMANDER 950 - Manual (Page 52)

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Figure 34 Typical Alpha-N Fuel Map
Mapping is the same as speed density from the aspect that the area on the base fuel map that you are obtaining fuel map
values from will be highlighted in red. Drive the vehicle at different throttle positions and engine speeds to modify the fuel map
as needed. Closed loop feedback and oxygen sensor voltage can both be used for feedback just like speed density.
Photograph courtesy of Tony Thacker