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| | | Forums66 Topics128,095 Posts1,056,067 Members48,433 | | Most Online14,466
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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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#74168 03/02/2007 8:13 PM | Joined: Mar 2005 Posts: 1,513 'Bolter | | 'Bolter Joined: Mar 2005 Posts: 1,513 | The amount of vacuum created is a result of the condition of the engine. An average 235 will idle between 15-20 lbs. A vacuum gauge can be the most valuable diagnostic tool in your box and they're not expensive. I suggest buy one instead of borrowing. Here's a link that explains readings: http://www.centuryperformance.com/vacuum.asp Curt B.
1952 1300 Canadian 1/2 ton restomod You Tube | | |
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