JohnEngland
Well-Known Member
I need a little help if I may get it. I am a beginner at reading plugs. The attached plug was pulled after cruising around. Timing is set at 15 initial and 35 total., The enginge is a 472 stroker with a Quick fuel 780 vacuum secondary carb. Vacuum advance is being used. Hughes cam Lift .571 and .582 lobe sep 110 degrees, duration at 50 degrees is 232-236. Plugs are RC12YC campions gapped at .035. Rev a nator Ignition box. Idles at 850 rpm. 93 octane no alcohol fuel.
The ground strap to me looks lean.
Thanks for any guidance![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
The ground strap to me looks lean.
Thanks for any guidance