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Lane,

The carb itself in this case large Kadrons do no have a tube but the manifold below each carb has a tapped hole and in my case a rubber 3/8 inch hose runs between the two manifolds below the carbs. One can tap that hose to get MAP. I hope this explanation helps. The hose is there to balance the vacuum between each cylinder bank. You might try to add the feature to your setup it will improve drivability and also is a good place to get vacuum for electronic ignitions although some carbs have a vacuum feature, maybe yours do. There is a lot of info out there if you want to learn more.  Cheers.

I actually rebuilt a Quadrajet   and got it to run pretty well, thanks to a lot of guidance from the late Lowell Roher down in South Carolina.  They are a bear to dial in, but probably not more-so than a Weber or Dell once you understand any of those three.  Mine found it's way back to a '67 Toronado that still shows up at cruise nights in Beaufort.

I still have the chicken bones Lowell gave me after he showed me how to toss and read them for guidance in bending those little tabs and wires.      

Dr. Zook 2

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  • Dr. Zook 2

In hindsight: The lowly Rochester 4 barrel was certainly a better street machine induction system than 98 percent of the Holleys as run in the 70s and 80s. The spreadbore design and the smaller primaries meant better velocity and atomization for sure.

Holley had better advertising and those dual fuel bowls looked more purposeful.

By my recollection, not one hotrodder in 30 back then knew thing one about tuning and jetting any of 'em. And that goes especially for the guys who thought they knew.

@R Thorpe posted:

Oh Webbers the carbs for people who like to tune carbs.

@Stan Galat posted:

Sure. Also people interested in getting the most out of what they have.

You don't need to like tuning, or attend to them much IF you know what you're doing. I haven't touched my Webers in years, they are THAT reliable.

And yes, Webers or Dellortos are for getting the most out of a carbureted car.

Richard, I'm sure the Solex/Kadrons you have are sufficient for your needs. But as has been said before, it's a big tent, and there is no ONE correct/best answer for all.

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