You can get a Holley 4 barrel in double pumper or vacuum secondary, they make them from little 450 cfm all the way to the big 1150 cfm Dominator series.
Biggest portion of the street carburetors were 600 to 750 cfm.
I have a original 4575 1050 Dominator with the choke plate and pcv port.
Holley built these carbs to meet NASCAR rules so Ford could run them on the Boss 429 engines.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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