So I got the flow matched reman 703 injectors from ebay, very quick shipping and very nicely packaged.
When I pulled the old factory ones out of the jeep, I noticed a TON of gunk on each of the injector ports, just seemed like a bunch of varnish all over the port and inside. I cleaned it all out. Installation was a snap, Ive done it a bunch of times before so no big deal.
I previously had the WJ injectors with the LH car FPR, (I had switched back to the original factory injectors with the LH FPR for smogging purposes) which runs at 41-49 psi on the older jeeps. So I put the 703's in, started it up and it must have been too rich because it was running like absolute crap, I mean almost stalling out. The exhaust smelled pig rich and I couldnt really even rev it.
So I took off the LH FPR and put on the stock FPR which lowered the pressure to 31-39psi... It started right up, and idles SUPER SMOOTH now!! Seems to be eager to rev, idles a bit higher now and I barely have to touch the accelerator to start out, feels way more torquey and on the fwy all I need is a tiny millimeter of throttle input to cruise. At WOT it seems to pull very nicely after 2500 rpm (still have a flat spot from 1800 to 2500 rpm) but after that it's nicely powered.
All in all seems like a very worthy upgrade, but if you're running a higher fuel pressure it will be way too rich.