Jumped a tooth in timing?
I'm sorry - it was my mistake; I re-read your posts again - missed that it was a used truck. I think i was half-asleep, lol.
You did good changing them - I just wanted to point out the reason they came out so well - they had already been done and you had revised plugs in there. I did not want to burst your Lottery dreams

BTW - Ford specs a 60K plug interval for these now - the gap growth purty much make a 100K plug a myth.
No worries, mate.

MGD
Last edited by MGD; Mar 2, 2014 at 09:59 AM.

