Spark plug gaps

Swinger 340 said

As I have said before, it's the whole package that works best. A wider gap on the plugs, with a hotter coil should work best. Not just opening the gap. More gap, more fire to burn more fuel, but you need a hot spark. I run a Accel Super coil on my 340 van and give it a little wider gap. I'm sure there is better ways today, but It's been a 45-year set-up and had no issues.

Click to expand...

Sounds about right. I hesitated in my thinking (going wider gap) but as was stated, the Blaster II coil and the MSD distributor ALLOWS(?) for the facilitation of a wider gap and can form a stronger kernel of flame for a more complete burn. Perhaps with OEM spec ignition it won't facilitate that kernel.
I'll report back with pics of the NGK plugs and a longer evaluation of how it runs with the .060" gap after some miles.