LS9 Injector Install In LS1, Injector Flow Rate Question

[SLP IROC-Z]

Just installed a set of LS9 injectors in an 01 SS with trickflow 215 heads and a 234/238 cam, the car was equipped with a smp 01d030b injectors and was tuned. The tune wasnt perfect but it wasnt far off. With the LS9s in it and tune modified with the ls9->ls1 xls file i got from here now the fuel trims are way off, its adding 20% fuel at idle. The only time the trims make any sense is when i change the injector flow rate to 48lb. Ive read conflicting data on the actual flow rate of the ls9 injectors, bosch rates them at 48lb @ 58 psi, GM rates them at 59lb @ 58psi, FIC states they flow 59lb on their flow bench. the LS9->Ls1 XLS file translates to 52.52lb. If I set the injector flow rate table to 59 it maxs out the trims at idle @ 25% on both banks. Set at 52.52 its adding about 15-20%, If i set the table to 46lb its removing alot of fuel at idle, at 48lb the trims made the most sense. Obviously I dont want to be using the IFR to hack the tune Im just looking for some help on what the actual flow rate of these injectors are because there seems to be a lot of conflicting data.

http://ls1tech.com/forums/fueling-in...flow-rate.html

LS9-to-LS1 injectors.xls