Plug choice ?

[turbocamino1]

What plug and gap works well with iron heads...100% meth and 30 Lbs. thanks

 

[turbocamino1]

autolite AR24 or AC R42TS ?

 

[Razor]

Buddy runs 23's at .030 gap

 

[turbocamino1]

Buddy runs 23's at .030 gap

Thanks...which is colder 23 or 24 ?

 

[RmvBfrFlght]

The 23 is colder (Autolite plug). Can also try the Autolite 144, which is a non-projected tip with a heat range between the 23 & 24. To go colder need to go to the AR series of racing plugs.

RemoveBeforeFlight

 

[turbocamino1]

Perfect...thanks.