Re: Carb adaptors- 4bbl to 2bbl ?

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Posted by Ron-MO on December 15, 2007 at 15:22:27 from (98.20.189.117):

In Reply to: Carb adaptors- 4bbl to 2bbl ? posted by Buck from WV on December 15, 2007 at 06:08:02:

Depending on the carb you may be better off with the 4 barrell. Like someone else said, a spread bore 4 will do better than a 2 barrell as long as you keep the foot out of it. If GM go with a well built quadrajet, and make sure to replace the float as they are a source of trouble if it has one of the fiber floats. Also, Holley used to build a 450 cfm 4 barrell that did very well on gas mileage and would fit a quadrajet manifold. I had a 400 small block that got well over 20 mpg using one of those carbs.

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