[Tigers] the vacuum port on the Holley carb,
Carmods at aol.com
Carmods at aol.com
Sun May 11 12:27:46 MDT 2008
_fastsage at cox.net_ (mailto:fastsage at cox.net) writes: Maybe because there
was little vacuum coming from the port on the
metering block Have I made the right decision?
Steve,
I prefer to use the the vacuum port below the butterfly valve on the Holley
carburetor. Some people don't. There is not supposed to be vacuum at that
port at idle. This provides a lower advance at idle that improves idle quality.
When the butterfly valve began's to open you will get vacuum to operate the
distributor advance. If you put a gauge on the line and drive the car you
will see the vacuum come in as you open the throttle.
John Logan
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