My car a 91 pontiac sunbird 3.1L V6 has a miss and i cant figure it out please...

[fmf_boy_2005]

...help!!? i have changed the fuel filter, spark plugs and wires and cleaned the fuel injectors.
im going to replace the coil packs and see if that fixes it

 

[none ne y]

My first guess would be a coil pack going bad. Second guess is dirty fuel injectors.