47-55.1 Rochester B Carb info - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jemezcrusher · 04-12-2019, 10:08 PM

I am trying to get my dual Weber carbs jetted and need to see what I can find out about Rochester B Carbs. Had one on my 235 when I took the truck apart and it ran pretty well.

It had a main jet size #58. Not sure what that means, but would need to figure that out and what the air Venturi size is of the carb. WIth that knowledge I should be able to figure out what sort of jetting equivalent my two Weber’s should have to replace the single Rochester

ANy Rochester experts on here?

04-12-2019, 10:08 PM	#1
Jemezcrusher Registered User Join Date: Nov 2015 Location: Jemez Springs, NM Posts: 435	Rochester B Carb info I am trying to get my dual Weber carbs jetted and need to see what I can find out about Rochester B Carbs. Had one on my 235 when I took the truck apart and it ran pretty well. It had a main jet size #58. Not sure what that means, but would need to figure that out and what the air Venturi size is of the carb. WIth that knowledge I should be able to figure out what sort of jetting equivalent my two Weber’s should have to replace the single Rochester ANy Rochester experts on here?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.