NHRA Levied Actions Against Don Davidson

[Jim Cimarolli]

Originally Posted by Jim Wahl

Here's a tip that most already know but I found out the hard way when I was running the Cadillac, never let them check your cam or heads when they are above ambient temperature! Cool them off as much as possible. After I set a record, the cam was checked right away as it was very easy in the Caddy, it checked +.002. No good. First thing the next morning it checked -.002! Same valve. A cool cam and rocker made .004 difference! Jim


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If a person has that luxury. They never asked me if it was OK to check it now or when it cools down.