Rich or lean

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rustbucket79

Veteran Member
May 29, 2003
9,076
British Columbia, Canada
That's a big change for a minor temperature change.

FWIW lean will show less of a change than proper or rich jetting.

More important, what do the rest of the incrementals show, especially the 60' times?
 
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Blown Camaro

American by birth, drag racer by choice
Dec 13, 2009
1,199
Deltona, FL
Put a new plug in one cylinder that is easy to get to when hot. Kill the engine at the stripe, coast off and pull that plug. Then you will know which direction to go.
 

jimbaughan

Veteran Member
Sep 1, 2007
310
meansville,ga
normally if my car spins the tires I willbe slow to 60ft but have the same times from 60 to 330 and from330 to 660. This time I was.04 slow from 60 to 330. The reason I am wondering if its real fat is the humidity was climbing as the day went on. The more the humidty rose the slower I got.
 

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