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Click on image for the lowdown. 
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| | | Forums66 Topics128,023 Posts1,055,367 Members48,420 | | 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!
| | THANKS!
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: Feb 2006 Posts: 549 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 549 | The front plate is your choke plate. It should always be open except:
1. when it's cold, automatic choke.. 2. when you pull the choke cable..
the rear plate will open only when the engne is under load - needs more gas..the butterflys under that rear will then open as well.. | | |
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