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1994 Pontiac Firebird

...Once the last rocker is tightened down the motor is started and revved to listen for valve tap, which would mean the rockers would need to be retightened. Everything was kosher, though, so Junior put the valve covers back on.
1994 Pontiac Firebird - When LT1s Attack

 ...Once the last rocker is tightened down the motor is started and revved to listen for valve tap, which would mean the rockers would need to be retightened. Everything was kosher, though, so Junior put the valve covers back on.  View Related Article

 

 

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