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Mod | | | Forums66 Topics128,037 Posts1,055,467 Members48,424 | | 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
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
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#84769 10/26/2007 12:59 AM | Joined: Apr 2005 Posts: 275 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 275 | Take a look at http://www.centuryperformance.com/vacuum.asp It explains pretty well the various conditions. If you have a hi-perf. cam be aware your vac. will be lower than stock at idle due to valve overlap. Doug | | |
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