ruff idle.. 5.0 help

[hq-racing]

hey ppl, my VR Club has a VT 5.0 conversion and a cpple of weeks ago i did a plug n lead change to it and a few days later it started idding a lill off but only when it warm..
i rechecked the timming, put it at 10degrees btdc its a lill smoother but still jumps at idle.. only a lill bit tho, enough to annoy..
i ran an code check n it came up wit rich o'2 sensor?
could that be the reason?
i was thinking maybe cracked plug or dodgey lead?
any ideas would be great.
thanks

[hako]

Ignore the O2 sensor code as a bad plug or lead will cause that code. I'd check all the leads (measure resistance) and also unscrew the plugs (all 8!) and check gaps and also for cracks as you suggest. Also triple check the leads are where they should be.

[hq-racing]

i'll sus that, thanks...

[hq-racing]

the plugs are NGK BPR6EF n the gaps are 25tho, no cracks on them. all at 25...
ahh this is starting to annoy me, it real struggles to go thro the revs, real hesitante..
ne ideas??

[hq-racing]

ok so i just found out that my gap is way out, its at 0.6ml, gonna run 1.0ml 2morro! please let this be it!!! please!!!!!!!

[hq-racing]

na made it worse!!!! now im defiently thinking it must be a lead!
its at my mechanics now to get my tailshaft rebuilt n new booster so they're gonna look at it for me! cant be bothered nemore! had enough!

[hq-racing]

traced it back to a dodgey coil and foul'd plug! thank F$%# thats over!