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Mod | | | Forums66 Topics128,032 Posts1,055,523 Members48,425 | | 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: Mar 2011 Posts: 204 'Bolter | | 'Bolter Joined: Mar 2011 Posts: 204 | running real rich at idle and rpms. vales adjusted and timing is right carb rebuilt last year running aldor plugs cap points and rotor good. any ideas on how to lean out. i read carb jets are not adjustable in rochester b carb | | | | | Joined: Apr 2005 Posts: 7,440 Bolter | | Bolter Joined: Apr 2005 Posts: 7,440 | Year of truck and motor size please.
Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
| | | | | Joined: Mar 2011 Posts: 204 'Bolter | | 'Bolter Joined: Mar 2011 Posts: 204 | sorry 55.1 chevy 3600 with 235 | | | | | Joined: Feb 2000 Posts: 5,198 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,198 | | | | | | Joined: Apr 2005 Posts: 7,440 Bolter | | Bolter Joined: Apr 2005 Posts: 7,440 | Check adjustment of float level.
Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
| | | | | Joined: Mar 2011 Posts: 204 'Bolter | | 'Bolter Joined: Mar 2011 Posts: 204 | I just got home from a ten mile drive. the engine sounds great and it was running the best it has ever run, but there was one back fire (early in the beginning about 100 yards down the road)and it seams to have more power. its dark now but i'm going to pull a spark plug tomorrow morning to see if is charred. the exhaust does smell gassy. I printed a float adjustment from the manual and will read up on it. thanks | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | An incorrect base gasket will block the power valve vacuum port causing a very rich mixture.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | If you have the wrong main jet in the Rochester, it will do that. I had a Rochester for my 216 and it had a main jet stamped 58. That caused it to run rich. The one I have in there now says 51 on it. | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | 216's run 51's or close to that, and 235's run around 58's. Venturi size is also different from 216's and 235's
See the USA in your vintage Chevrolet! My Blog | | |
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