Rochester 2bbl help

Jeff Stout · 08-15-2025, 11:05 PM

Any dirt track guys you may know? Out here Rochester 2 bbl is required. Only thing I learned is the barrels in main body are at different distances between each one. The closer they are is better. Then removable venturi also have different ID sizes. Bigger ID I think are on trucks. I don't what NHRA checks with go, no-go gauges. I did find once 56 Olds tri power that had carbs flowed more then others and they were Rochester.

08-15-2025, 11:05 PM	#2
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,489 Likes: 66 Liked 706 Times in 283 Posts	Re: Rochester 2bbl help Any dirt track guys you may know? Out here Rochester 2 bbl is required. Only thing I learned is the barrels in main body are at different distances between each one. The closer they are is better. Then removable venturi also have different ID sizes. Bigger ID I think are on trucks. I don't what NHRA checks with go, no-go gauges. I did find once 56 Olds tri power that had carbs flowed more then others and they were Rochester.