What plugs with Stage II heads?

[Black Sheep]

NGK preferably...

 

[BLACK MAGIC RACING]

I use autolite AR-472. any particular reason you prefer NGK

 

[Black Sheep]

Thank you for the reply.


I was wanting the NGK non-projected tip but I'm not finding that plug with a tapered seat, 3/4 reach, 5/8 hex.


Todd

 

[noslow6]

I also use Autolite AR-472 or Champion 683 S59C