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| | Forums66 Topics128,277 Posts1,058,441 Members48,490 | | 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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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
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| | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | My Rochester B distributor vacuum source is ported on my 55.2 3100 truck with a 235 engine. No vacuum at idle, only after the throttle is opened. This is correct, no vacuum at idle with a Model B.
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