Why did nhra change the cam and valve spring rule in 1985? - CLASS RACER FORUM

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Why did nhra change the cam and valve spring rule in 1985?

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07-05-2010, 06:13 PM

#26

Rick Leininger Jr.

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Re: Why did nhra change the cam and valve spring rule in 1985?

Quote:

Originally Posted by Billy Nees

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No matter where you increase the opening and closing rates on the cam the valve MUST follow the ramp and the rate of opening or closing.

IF you use the ceramic lifters.

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