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Click on image for the lowdown. 
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| | | Forums66 Topics128,091 Posts1,056,033 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!
| | 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 2001 Posts: 1,096 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 1,096 | I had one of those on my '40 (216) my impression was it was a choke in the manifold ( to maybe help prevent overloading the engine under heavy work ) ???
I notice the car engine is listed as 85 HP and the truck at 78 HP , same engine . I never reinstalled it , I like the way the truck runs at its best . | | |
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