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E85 Plug Gap?

Posted: Thu Oct 12, 2017 9:30 pm
by CraigG.
Hey Guys - I have a 455 Pontiac with E heads and 12.5 - 13 to 1 and E85. I have MSD 6AL, Billet Dist, Blaser 2 coil and Firecore wires with NGK's #7 gapped .028 to .030 - Ignition locked with rotor phasing adjusted.

What is a good GAP for this Plug Set up?
Thanks, Again, Craig

Re: E85 Plug Gap?

Posted: Fri Oct 13, 2017 12:27 pm
by AMXstocker1
Mark Sullens says .032 and that seems to work well for us with a 13.1 iron headed amc.