so i finally got my diff set pretty much where i want it (tight! hehe) and the car in general running well. then i take it out today and i noticed that when i take the glow stick off the plug it runs rough. if i put the glow stick back on the plug it smooths out, take it off again and it runs rough again.
what would cause this? i tried 2 glow plugs and they both do it. a friend suggested that i need OS #8 plugs, and the ones i had from my megatech .16 are too cold for it, but i dunno. what do yall think?