gap for plugs - MSD box & dist.
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...
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...