"Change it to 1.25 for all 6 cylinders if your tuning for winter blend E85 or 1.3 for summer blend. If you want you can shoot for the middle at 1.225"

The middle would be 1.275, not 1.225, right?

Also in DHP this is called "Injector Skew Percent" but there is also "Rough Idle Injector Skew Percent" would that possibly be needing changed too?