Tweet
Which plug would be better for Circle racing (Ford N head 351, circles 6500-7800 RPM)
NGK B8EFS or Autolite AR474. Autolite has a race plug but the NGK B8EFS spark plug is not designated for racing, I"m sure its fine though.
I read the last post about NGK being better but in this case there is not an NGK race plug for the newer N-heads.
Thanks in advance Guys
NGK B8EFS or Autolite AR474. Autolite has a race plug but the NGK B8EFS spark plug is not designated for racing, I"m sure its fine though.
I read the last post about NGK being better but in this case there is not an NGK race plug for the newer N-heads.
Thanks in advance Guys