Multiply your actual injector size by .7 and use actual latency's provided with injectors.
If you want to make the transition easier you can use your old settings but I strongly recommend using PROPER latency values. Using maf based latency values tend to get changed to meet some fueling needs.
If you have ID 1000's on E85 and stock Fuel pressure.
Scalar = 640cc
Latency values should be exactly as ID recommends with the injector sheet.
Modded stockers would be somewhere around 550-600cc
All I remember about modded stockers is 1.06ms for 14v...