What plugs are you guys running in your L67's? Autolite 104 or 103? And what gaps are you using? .060, 055, or 050?

 

On my old gtp- I ran 104's @ .060- it was a basic 3.4" car, plog + catless dp, 1.9 modded rockers, 180 tstat, FWI, res delete, custom tune done by myself etc- the normal basic mods. Some people said it might be a bit too cold, but it seemed to run fine- and the plugs looked pretty good when I pulled them.

On my monte I have 103's, currently at .055, but I'm still running a pretty big pulley (4.0")- once I get a house, I can stick the new lower adaptor and IC on- then get a smaller pulley on there- then it should be a pretty appropriate heat range. Not sure if the gap I've got them at will be ok or not, I'll have to see.

 

autolite 103 .054

 

Thanks guys.