Demon Carburetor Selection - Just The Right Size - Tech
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For our dyno-testing we ran 750-, 825-, and 1,000-cfm Race Demons. The power levels stayed remarkably close between the 750 and 825-cfm carburetors until 5,700 rpm, when the 825 carb produced slightly more power. The 1,000-cfm carburetor produced more power during this dyno session, especially from 4,300 rpm up. Note that this is a very modified large engine with a manual transmission. Although power numbers are higher in this case with the 1,000-cfm carburetor, smaller ones typically provide a crisper throttle response on the street. For most street applications a 1,000-cfm would be far too large. View Related Article
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