you absolute best bet is to simply have the stock injectors cleaned/"rebuilt" by the best:
$20 per injector for testing, analyzing quality, leak testing, multiple cleanings, re-testing, new o-rings/filters/baskets/pintle-caps. 2-3 day turnaround.
I've been using these guys for years, and every single time it's incredibly quick turnaround time and only top notch work done. huuuuge night and day difference before and after, on paper and in performance/function. they even send you a full data sheet when you get them back on: before/after spray pattern quality, constant flow and pulsed flow before all work, and constant flow and pulsed flow after all work.
I actually just had them do the ones in my XJ a week ago, had them back in my hands 4 days later. installed them 2 days ago, and you'd think I did a brand new engine swap by the way it runs now. previously 1 injector had a "fair" spray pattern, and the constant flow had a 5.0% variation and pulsed flow had a 5.7% variation. factory spec is usually 3% variation max. after their work, they are now 1.0% variation constant, and 1.3% variation pulsed. and spray patterns are insanely improved
also, a large reason why oem injectors are you best bet is because our ecu's are very very basic and dont have a huge adaptability to parts that dont operate identical to stock. by using freshened stock injectors, the computer is very happy, and you will be too. aftermarket injectors have different spray patterns, different flow rates, different latencies, lots of different characteristics; and the ecu can't usually compensate perfectly for it all.