Hey People.My Z is not running quite right.Let me tell you whats up & if you've got suggestions I'd like to hear em.It's mostly noticeable at idle.Kinda like a miss,kinda like it's got a 3/4 race cam in it.I hve new plugs (NGK gapped) Nissan cap & rotor,new pcv And I'm gonna put a new o2 sensor in as soon as I get the old one out(it doesn't want to,broken 2 ext.'s on it already,heavy WD soaked).I haven't set the idle or the timing but not sure if that would help anyway.Any suggestions before I break down & take it to a shop?
Thanks for any help!

Here it is...

 

Thanks yelo,it's running much better now that I replaced the o2 sensor.I still need to set the ign timing.I borrowed a light so I'll be doing that soon.Got some new wires coming.Might get a coil & amp too.My coil looks kind of scorched. Don't know anything about setting the tps.I'll check my Chilton's.

Here it is...