Spark plug gap
#1
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What would be the correct gap on a 454 with dart iron eagle heads and holley 750? I'm using AC delco plugs. Thanks
Last edited by gripit; 03-24-2007 at 10:05 AM.
#3
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If you dont have MSD or like ignition leave it at .035.
Set your timing around 30 to 32 degree's.
John S.![Big Grin](/forums/images/smilies/biggrin.gif)
As far as anti-sieze, just a touch of it on the threads will do. What ever you do, do not use grease.
Set your timing around 30 to 32 degree's.
John S.
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As far as anti-sieze, just a touch of it on the threads will do. What ever you do, do not use grease.
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With an MSD or Crane box you can get away with .038 to .040 on the gap. The plugs seem to last a little bit longer with the larger gap. At .035 they seem to burn up faster.
John S.
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#7
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In reference to a Crane ignition box---don't quote me, but I think it says in their manual they recommend a .045" gap on a spark plug using their Hi-6M ignition box with their PS-92 coil. Whether a .045" gap is truly a good place to gap it at I really don't know.
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I've run our 1200 Cobras at .045 when we got them back from Randy and the plugs would foul and wear out quick. I tightened the gap up to .040 and got double the amount of hours out of them. Just my personal experience. A lot of other people will tell you the same as you also.
John S.
John S.
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