vacuum testing 260z engine

abas

Well-Known Forum User
Has anyone here used a vacuum tester to ascertain whether their engines are running OK?

Mine is showing 16-17hg at idle but it has a rapid flicker of a bout 1 to 1.5hg which 'maybe' due to the cam overlap ( standard 260z engine) which I am trying to pin down

thanks for any help

Andrew
 
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