[Healeys] Best spark plugs for Healey 3000

Maurice Maxwell maxandreb1 at yahoo.com
Tue Nov 13 19:21:25 MST 2012

What are the best spark plugs for a stock Healey 3000 engine?  The car is used
for road use with spirited driving.  According to the plug chart on John Simms
web site, my plugs appear to be on the hot side of OK.
Thanks in advance,
1961 MkI

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