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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2007 Posts: 397 Shop Shark | | Shop Shark Joined: Oct 2007 Posts: 397 | First question, when running at idle is the vacuum line at the dizzy suppose to be zero? I disconnected the vacuum line at the dizzy and hooked up my vacuum gauge and and at 475 RPM idle it reads zero.
When I reconnect that vacuum line what would be a good reading range as I increase the speed of the engine. I'll probably have to put a "T" connection in the line in order to get a any readings.
I can't seem to find any written ratings in my shop manual for this vacuum line.
"Lucille" ..... Proud Member of the "Southern Stovebolts" David Wolff 1946 Chevy 1/2-ton In the Gallery | | |
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