Quoting:
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Caburetor Capacity
In general, a high output turbocharged engine requires the same or even less capacity carburetor than a highoutput naturally aspirated engine. For example, a normally aspirated 1971 Oldsmobile 350-CID engine used a 725 CFM quadrajet. When Rajay turbocharged the car, they got best results with a single Holley 600-CFM four-barrel.
Crown Manufacturing's Datsun 240Z installation used only one of the two SU/Hitachi carburetors provided on the engine, yet achieved near 100-MPH performance in the 1/4 mile.
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Taken from Turbochargers by Hugh MacInnes
I can't believe it took me this long to find that. I've had this book for years.
