[PearlWhiteGT]

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.

 

[midnightlaundry]

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

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[RTW0223]

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

 

[PearlWhiteGT]

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

 

[lethe]

3923 with .026" gap