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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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| | | | Joined: Mar 2005 Posts: 1 Junior Member | | Junior Member Joined: Mar 2005 Posts: 1 | I purchased an offenhauser dual intake and was wondering on how to hook up the linkage. If i have to choke both carbs, how to run the fuel and vacuum advance lines and any other information you may have. | | | | | Joined: Dec 2003 Posts: 103 Member | | Member Joined: Dec 2003 Posts: 103 | FWIW: On my 235, I have an Offy dual intake. I purchased 2 Carter Weber carbs and the linkage from Stovebolt Engine company. Th1s carb has an electric choke. I only hooked up one. Likewise with vacuum. Stovebolt will supply instructions with these items. | | | | | Joined: Apr 2004 Posts: 375 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2004 Posts: 375 | I installed Offy with Rochesters last fall. The Rochesters were remanufactured by Holly. I don't recall where I bought them but they never did pump fuel. I pulled those and installed Carter Webers this past weekend. The instructions on the linkage setup from Stovebolt left a lot to be desired. One little picture from one angle was not enough. I figured it out though. The carbs are mounted and the linkage is functioning.
I haven't plumbed the fuel or vacuum yet. One thing I learned from my Rochester install that I'll pass along. Don't even try to use compression fittings. I couldn't get those fittings tight enough to stop the leaks. And; they were easy to over-tighten and break.
I can't wait to see how those carbs run. I was very frustrated with my truck all winter because I wasn't able to enjoy it after I started the conversion to 2 carbs. I'm starting to get excited again. Now; if I could ever get some time at home to finish the job...
Jerry | | |
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