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Mod | | | Forums66 Topics128,049 Posts1,055,740 Members48,426 | | 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!
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#83575 09/30/2007 4:30 PM | Joined: Mar 2007 Posts: 16 Junior Member | | Junior Member Joined: Mar 2007 Posts: 16 | Hi all,
Ive got a 54' w/ a 235 and a "roch b" and I am curious what the preliminary settings for the mix scerw and the throttle screw should be.
-Owen
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#83576 09/30/2007 5:16 PM | Joined: May 2005 Posts: 1,624 Shop Shark | | Shop Shark Joined: May 2005 Posts: 1,624 | Have you, as the "always" first post suggest, tried a search for "B" Rochesters? As a past owner of two of them I know there are a ton of postings dealing with them. Pay close attention to "CarbKing's" posts as he is a "guru" on old carbs.
Six volt guy living in a twelve volt world
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#83577 09/30/2007 6:02 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Make shure the float level is correct. Start with the mixture screw out about 2 turns from bottoming. Start the engine & set the idle speed about where you want it. Slowly turn the mixture screw in till the engines starts slowing down. then back it out to a point where it runs smoothest, usually 1/2 turn. Reset the idle speed if it has changed any. It,s good to go over the mixture adjustment after it has been driven awhile & is warm.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#83578 10/13/2007 10:53 PM | Joined: Mar 2007 Posts: 16 Junior Member | | Junior Member Joined: Mar 2007 Posts: 16 |
-Owen
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