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| | | Forums66 Topics128,066 Posts1,055,876 Members48,428 | | 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: Aug 2005 Posts: 341 'Bolter | | 'Bolter Joined: Aug 2005 Posts: 341 | Yes, it could be a vacuum leak and the throttle shaft is a possible culprit. Try wiggling the throttle shaft by hand to see if there's any play at all. The Rochester I had on a 216 manifold (235 engine) had that problem causing, I assume, a bad flat spot on acceleration. I switched to a Carter on the correct 235 manifold and it now runs great.
BTW, welcome to the board Kurt!
Allan
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1951 GMC 1/2-ton
Two 1953 Chevy 3100 5-window
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