71 Pontiac Lemans w/ Chevy 350....carb info needed please

Tifford

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The carb that sat on top the plain jane chevy back in 1971
-Who made it?
-What size was it CFM wise?
-Was it 2 or 4 barrel?
 

melsg5

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In 1971 GM only used Rochester designed carburetors. They were both 2 bbl and 4 bbl carburetors. Easy to see the difference by looking at it.
The CFM rating system for 2bbl and 4 bbl is not the same. The 2bbl can be as small as 225 cfm and as large as 435 cfm. The 4bbl Quadrajet was 750 cfm accept for rare versions that were 800 cfm.
 
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