what gap on the plugs?

[Grumpy]

Greetings All :
.40 over 350 Chevy motor, Mallory Hy-Fire 6-AL ignition box.
Recommended plug gap? Should it be a bit larger due to the
Mallory Box? Thanks in advance for your help.

a good strong spark and low ohms resistance ignition wire,
(especially the lower rpm multi spark ignitions )
and proper ignition advance is far more helpful ,
than adding a minor increase in spark plug gap.
.043-.045 works rather well with most 6al distributor ignitions,
Ive never seen a wider gap produce better results.
obviously use of good low ohms ignition wire helps performance.


related threads with helpful info
http://garage.grumpysperformance.co...ecent-value-in-ignition-wire.6760/#post-21657

http://garage.grumpysperformance.com/index.php?threads/ignition-wire-crimp-tool.2749/#post-25065

http://garage.grumpysperformance.com/index.php?threads/verifying-your-real-advance-curve.4683/

http://garage.grumpysperformance.com/index.php?threads/spark-plug-info.202/

http://garage.grumpysperformance.com/index.php?threads/installing-hard-to-access-plugs.962/

http://garage.grumpysperformance.com/index.php?threads/timing-tabs-and-indicators.1015/

http://garage.grumpysperformance.co...ouble-shooting-rebuilding-hei-ignitions.2798/