Anyone have the part number and application data (vehicles it was used on) for the Rochester BC carburetor? Thanks!
Is there a particular number you want to I.D.? There were several variations of the model you speak of, and they were used for almost thirty years.
OK, well, I guess here's the real question: I'm wanting to put a Fenton dual-carb intake on a 235 straight six Chevrolet. Is one BC better than another for this application? Or how about the Rochester B? I guess you can tell: I'm not much of a carb guy.
First things first---measure the bolt center on the intake, because 216 carbs have a smaller spread than 235 carbs, and the aftermarket intakes are flanged for one or the other. I've had the best luck with the early '50s type with a manual choke. Check out the Inliners International website for tech; years ago, one of the members (I think his name is Pat Smith) wrote an article for the newsletter concerning the necessary modifications to make them work smoothly on a dual intake. Honestly, my favorite for a dual setup on a 235 is the Stromberg BXOV-2. I still find them at swap meets occasionally---in fact, I picked up one N.O.S. in the box at Hershey last fall for $25.00, and some of them came with adjustable main jets, which makes fine tuning them a snap.
You can run one of each. or two of each.Lot of times you see a BC with the choke hooked up and a B with no choke.If you run a manual choke cable you can run the B with one hooked up for choke,or run a BC with the heat tube and dissable the choke on the other.