RE: NGK spark plug recommendation

["rjhco" <rjh@hockertlaw.us>]

Use NGK BR6ES plugs for a non-modified Healey.  The next colder plug, for a
modified (more compression, more cam, timing changes, etc.) is BR7ES or
B7ECS (this one has a cut back electrode).  The next colder yet is BR9ECS.

I use the 7 but they are sometimes difficult to locate.  I use the 6 as a
backup if I cannot find any 7 series plugs.

Best regards,
Jim Hockert
BJ8 Rallye
Dallas, TX