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qflash 02-09-2018 06:22 PM

spark plug gap
 
Recommended plug gap for MSD 7-AL3 with Autolite racing plugs in 307 Olds stocker.
Thanks,
Ron

GTX JOHN 02-10-2018 01:43 AM

Re: spark plug gap
 
We run .035. on AR plugs
More does not seen to help and just puts
more strain on the the rest of ignition system in
my opinion.

FireSale 02-10-2018 12:22 PM

Re: spark plug gap
 
I have that box on a 302 Ford. At .050 it was hard to start. Improved a lot at .035. Autolite plugs, too.

Dave Noll 02-11-2018 01:02 AM

Re: spark plug gap
 
.015" difference in spark gap makes a negligible difference in spark output as observed on an Oscilloscope.


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