Re: measure gap between rotor and plug posts in distributor cap
 

...

Re: measure gap between rotor and plug posts in distributor cap
 

Why would you want a hotter spark inside the distributor?

Re: measure gap between rotor and plug posts in distributor cap
 

Not talking about Model As guys.

Was being paid to drag race back then. Those engines went 8k.

I didn't want a hotter spark in the distributor, I wanted all the spark for the sparklers[ which didn't have ground wires most of the time]