gap for plugs - MSD box & dist.

Bewy said

For those who think 'spark plugs do not make a difference'......

Below is a D. Vizard test on a Mini engine that made 90 hp. Different plugs were tried & it lost as much as 30hp! As he says, all sounded the same on the dyno....
An extreme example no doubt, but there it is...

View attachment 1716175537

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I haven't seen anyone say "spark plugs don't make a difference". I've seen people say, and rightfully so that snake oil plugs are just that. Snake oil. We all know a properly chosen plug can definitely make a difference and no one is arguing that. You always make the argument about somethin IT AIN'T in an effort just to keep arguin.