fuel injectors

whats the best way to test the injectors to see if they are working right, my jeep is a 87, but I put a 90 engine L-six in it, it idles and runs a little ruff. don't if its a injector or not, or burning to rich. any idea?I do most of my repair myself, try to save $$$$$. thanks

Burning rich?hhhhmmmmm, try the maf sencer, then the egr.

thanks vamc, I'll try that. did you mean the map sencer,or whats the maf sencer???

what is the condition of the ignition system? Could also be related.

what is the condition of the ignition system? Could also be related.
I plan on getting all new wires, plugs, cap etc. but it starts fine,,thanks

I that you prenounced it a maf sencer not a map. I could be wrong though. if anything, its one in the same.