It looks like these are the injectors. I know it says 61lb but everything points to these. Here is the datasheet where you can find the flow rate:
https://www.efihardware.com/download...heet-855-646HS

The other issue is the offsets, in your tune its set to 0 offset as voltage goes up, as you can see in the sheet it is close to 0, not 0. May have to contact the mfr and get the actual data from them so you can load it into your tune. The other issue is your pressure. These injectors are rated at 3bar and you are running 4. It essentially increases the flow from 61 to almost 71lb/hr. If you have an adjustable regulator, I would put it down to 43psi where the injectors are rated for. You dont have to, you will just have to take the extra flow into account when tuning.