93 Jeep Grand Cherokee ZJ

Hello guys/gals, I'm hoping to get an honest expertise & opinion with my situation today. I have a 1993 Jeep Grand Cherokee (Laredo) with the I6 4.0 I believe it still has the stock single hole EV1 pintle injectors in it. I'm wanting to upgrade to the 4 hole injectors that work best for my application. It seems when going online I'm sent to the wrong injectors for my application. Ppl will try to sell you anything just to get your hard earned buck so to speak. All I want is a good quality New or Rebuilt, "correct injectors" with no issues on too rich or too lean, spray pattern or any other factors that arise for my application. I'm needing some expertise advise when using various injectors in our 1st gen Jeep Grand Cherokee Laredo. Oh by the way, mine was Manufactured in Feb, 1993. any other questions you need from me please reply also.

This was one of the sites/page I was sent to from a seller: https://www.motormanfuelinjection.co...280155703.html

Thanks so much for all your time, honesty & expertise on my issue here. I'll be waiting for your response.
Todd