Re: spark plug recommendation
Quote:
Originally Posted by Charlie ny
What does the reddish brown color on the insulator tell me ?....I'm thinking lean. ?
Charlie ny
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Usually in a lean condition the insulator will be white. Lean conditions cause lots more heat the high heat burns the material off the insulator showing its original color. The best color is a light brown the reddish coloring is odd possibly caused by the brand of gas your using.
Ronnieroadster
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I use the F word a lot no not that word these words Flathead , Focus and Finish.
"Life Member of the Bonneville 200 MPH Club using a Ford Flathead block"
Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline.
First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH
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