> So if Roadsters often tend to run rich (at idle or otherwise due to
> mistuned carbs, needle profiles, etc) then the hotter plugs would be
> helpful to burn more of the fuel, keep the plugs from fouling and in the
> process, possibly a bit more power as a result? Sounds good to me.
Roadsters can also tend to run lean due to worn throttle shafts etc.
Lean engines run hotter, thus potentially overheating a 'too hot'
plug which can lead to pre-ignition and/or melted plug tips.
It's a trade off. Always a trade off.
I run BP6ES. I'm happy.
-- John
John F Sandhoff sandhoff@csus.edu Sacramento, CA
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