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Mod | | | Forums66 Topics128,024 Posts1,055,395 Members48,422 | | 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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#28935 10/06/2003 5:32 PM | Joined: May 2003 Posts: 111 Member | | Member Joined: May 2003 Posts: 111 | I've heard referances to a 2 Barrel carb that some of you are using on your in line sixes. I have a couple questions.
Is that a front/back carb (second barrel on demand like a 4 bbl 3/4th barrel)or is it a side by side, both bbls always operating?
Can it fit the standard intake from a 68 250?
If so where can I find it or what company makes it? Heck, I'll even take a bad one and rebuild it!
35 + years of rollin' steel!
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#28936 10/06/2003 7:23 PM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | It's a Holley-Weber progressive two bbl. You can buy them from Langdon\'s Stovebolt . He also sells an adapter to go on a one bbl. manifold, but it's a bit on the ugly side. Progressive means that it closes off the secondary until it's needed, helping torque and mileage. Call him up and talk, he has a lot of good info on them.
Fred
52 3600
69 C-10
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#28937 10/07/2003 11:46 PM | Joined: May 2003 Posts: 111 Member | | Member Joined: May 2003 Posts: 111 | Fred, Thanks for the info. I'll be contacting the site. Have you used this carb? Does it help with the gas mileage as well as power? Any down side to it?
35 + years of rollin' steel!
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