Im working on a turbo setup for my truck, i want to start tuning the injectors.
I got this injectors: Siemens 60lbs injectors

This is all the info i have about those:

Static Flow Rate (GAS): 62.7 lb/hr = 646 cc/min = 474 g/min
Dynamic Flow Rate 2.5ms PW @ 100Hz (GAS): 20.2mg/pulse
Coil Resistance: 12 Ohms (This high-impedance injector will work with all factory ECM/PCM injector drivers)
Gain: 0.11ms/mg
Offset: 0.055ms
Turn on time @ 14VDC: 1.14ms
Turn off time: 0.85ms @ 600KPa
Factory Tollerance: +/-6 %
Spray Pattern: Cone (4-Hole)
Connector: Minitimer (Bosch EV1)

My truck has a 5.3L/ 4L60E Has the OEM return vacuum signal FRP style fuel system
How do i tune for those injectors? i know i have to changue injector flow rate, and because of my return fuel sysstem i have to keep the same number on all th table, but how do i know the flow rate for this injectors and wich others parameters i have to changue?? if anybody has allready the data for this injectors i will apreciate if they can share it with me