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Low initial timing...
Why would low initial timing affect vacuum if the idle RPM is set proper? Isn't vacuum dependent on the mechanical specs of the cam? What does it matter to vacuum where the plug fires?
OH yea it matters big time.
I have to question the if it really has 18 degrees of timing at 900-1000rpms? Are you sure?
140 psi on the compression test would make want to check the cam also, to see if it's in right, unless it has really low compression pistons in it.
Last edited by Challenger 1; 11/14/13 07:34 PM.
