Preferred Plugs for 426 MW?

[Derrick Brown <63max426@xxxxxxxxx>]

Hi All,

Im sure this has been covered before but..............

Running  a 426 MW, 11:1 compression.
Running Champion plugs (RJ12s).
The car sees street driving and the occasional street bracket nights.
Any other plugs recommended?
Im thinking its time for replacement and wondering of others  
experiences.

Any preferences out there?
and/ or should i be running a hotter or colder plug?


thanks in advance.


Derrick Brown
'63 Sport Fury, 4 speed
derrickb@xxxxxxx