Note that injector flows are rated at standard 3-bar pressure and 100℅ duty-cycle full flow. Pumps and injectors are easy to replace. Do not let that be deciding factor in anything. They are sized for your target power output at very end.
EAT-811 = 175cc/min @ 43psi
INP-288 = 200cc/min @ 43psi
INP-250 = 235cc/min @ 43psi
Select your power output first. Then do proper maths:
Reason maths is vitally important and critical in planning stages is it dictates your turbo sizing. Plot your numbers on compressor map and find appropriate turbo.
Reason every single 250 turbo project has failed and blown up is lack of proper maths. Just picking cheap VZ turbo without doing maths has resulted in selecting turbo that's way, way too big for application. VZ turbo has sweet-spot of 100-150bhp!!! No way are you gonna run 50-70psi boost to get it to flow in its efficiency island and not blow up engine! Less boost results in tremendous lag and compressor-surge which is impossible to tune an aftermarket standalone programmable EFI system for because it's operating off edge of 3D maps.
So... What's your power target and show your maths.