Any Bosch over 900cc in that shape is a CDM copy, and that Ford Racing part will only do about 8-900cc. The only legitimate EV14's that are over 900cc have the super-long outlet nozzle deal and the two CNG models that ID used for their 1600cc & 2200cc line. Neither can be found for under $80 PER injector, a reason I don't mess with them.
You could probably get a half-way decent set of 4 from the initial 8. The last set of 8 injectors I tested was able to make a set of 4, but the other 4 weren't remotely close. WitchHunter claims they provide the pulsed flow data you'd need to avoid an absolutely terrible flow mismatch at low pulse widths. From my experience, they will vary by about 10% and individual cylinder trims will not work to correct it. The injector with the largest static flow could also have the lowest dynamic/pulsed flow, so the trims would make mismatch at idle that much worse. I also see about 5% of each batch so far off from the rest they're not usable, to the point I'll have to do a few thousand injectors until there's enough of them to make their own batch.
I'm curious if you've seen my ForSale post about my injectors. I do the same thing except on a bit larger scale, and it's not exactly cheap & easy to get into (I still haven't broke even). It's also not that easy to sling injectors that were decapped with a dremel tool even if you have a fancy flow sheet. I don't want you to think I'm steering you away, as you can find a lot of info from me in the wrx injector thread & pics of my 1st lathe steady rest jig in a separate thread. I just don't recommend if after all the time & money I poured into this. In some ways I wish I had rebuilt my car or reinvested in my house instead.