autolite plugs

[mikeshimek]

my tuner recommends autolite irridium plugs. right now i have ngk tr6's and am going to try the autolite's. question, anybody run them and if so are they worth a shot? and also i would like to run a tr7 heat range plug and do not know if they are the xp3923 or the xp3924. any help would be appreciated!

 

[cobradrivr]

Old thread, But anyone know the answer to this question? Its plug change time for me and im thinkin of autolites.

 

[cobradrivr]

Nobody?

 

[wjurls]

I have the Autolite Iridiums and they are just fine.

 

[Jomo1994z71]

TR7IXs which are Irridium are part# 3690
I highly recommend these as they last longer than the TR6s and have a tad smoother idle!