these are the autolite replacxements for the ngk tr55. i ran two or three times on the juice. i have them gapped at 40. well had. the last two are cylinder 5 and 7. no wonder it was running bad. i hit it today and it was backfiring all the way home top. i did a compression check. all cylinders were 175 except the one with the broke plug it was 170. not to bad at all. think i am going to the store for some tr6's again.

 

are those the autolite 140's? thats what im running, haven't had a problem yet

 

Were you running the Tr6's before? If so why did you switch? Have you had problems with the tr6's?

 

Oh god. Why the Autolites anyway???

 

i was running the tr6 plugs a while back. it idled funny with them. i was just trying a few things with plugs.

 

DANG !!

 

you guys and your laughing gas....funny now huh?

 

Oh, I got ya. Might want to try some different plugs..

 

yay i think it is funny when i win with it to.

 

man those were ugly. am i seeing those right, the last two from 5 and 7 are missing the metal piece! mail'em back to autolight and ask for your money back. plus shipping cost.