Do you have part numbers?
I have a strong suspicion you're talking CNG high-flow injectors & it's very typical for them to be so different.
1000cc 040s do have the orifice plate, and they're normally close together "as is".

I'm not sure why you extrapolate the issues with bigger (likely CNG!) injectors onto the smaller ones & still keep insisting the bigger ones are absolutely necessary, when it's not even the case.
A bit of a "unnecessarily create more issues for myself!" mindset.

Either way, I think that's a bit offtopic for this thread, so I suggest we stop this discussion. OP surely has enough info by now.