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Click on image for the lowdown. 
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| | | Forums66 Topics128,089 Posts1,056,437 Members48,443 | | 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!
| | | | Joined: Jan 2008 Posts: 4,962 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,962 | Expect less vacuum at higher elevations. A lot of vacuum gauges are not all that accurate. If you're worried about a vacuum leak, spray some Diesel or Marvel mystery Oil around the carb and intake manifold gaskets. If you have a vacuum leak, it will suck it in and the exhaust will smoke white. | | |
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