Re: The Duchess Project: 1940 Super 8 Convertible Sedan

Posted by JWL On 2013/5/14 16:01:10

Joe, thanks for the clarification. What you describe when reading the gauge connected to the distributor advance tubing would be correct: no vacuum at idle as the port in the carburetor is covered by the throttle plates. IF you decide to change the vacuum line connection to the manifold, there would be no need to readjust the timing, just the idle speed and mixture settings. It would be a simple thing to do and you should notice results immediately. Real curious how this "fix" would work on a Packard.

(o{}o)