Re: Deep knocking sound
Is this something new since the head was replaced?
Have you driven it yet?
With the higher compression heads they tend to knock much easier.
Try to purposely set the timing retarded a bit more and give it a try to see if the noise goes away.
Do you have full travel of the advance lever in the distributor body slot?
Also are you positive that you had the spark fully retarded when you set the timing?
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Dave / Lincoln Nebraska
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