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Discussion Starter #1
Which Autolite plugs and gap do you fellas recommend for my car? 306 with stock heads and 10 psi. I do have a MSD coil and 6A box as well.
 

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Forget the Autolites.. Run a non exposed Electrode. Go .025" and never worry about it with your MSD.

 

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I run Autolite 103 (i think) and gap at 0.025" never had a blow out with 6AL at 14psi. I have GT40 heads though so your spark plug p/n will change
 

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Discussion Starter #4
Went with Autolite 24's gapped at .025" and they seems to work well so far. Running 10psi max.
 
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