Did a search and nothing came up. I will be running no more than a 125 shot. I have autolite 104's. I see the avg. gap is .040 but I think those are with a stock igniton. Should open it a bit since I have a little extra punch from my MSD? Mods in sig.


Thanks,
Jeff

 

I run a 150-175 NX shot with an MSD ignition. I have the Autolite 103's gapped at .040. Never had a problem.

 

.040 won't be a problem at all, I run .038 with stock ignition.

 

I run mine at .035. With the MSD you will be fine anywhere between .035 and .040.

 

.040 it is then. Thanks guys.

 

103s gapped at .038 with MSD ignition. Runs great.

 

I put the Autolite and and my car ran like poopstank. Two of the plugs were arcing out onto the head. I swapped those two out and put the 2 old NGK's back in and it helped alot. I just bought some new NGK's and am going to put them back in soon. I dont like the way it runs with Autolites.