The Holley 4224 (660) center squirters are hard to beat when it comes to carbs for a tunnel ram. They usually just need a little leaning out on the idle circuit which is an easy fix with a piece of wire.
'75 Plymouth Duster Phase I 451 906/590/2-660 10.75/126 Phase II 451 Stage VI/590/1050 9.82/135 Phase III 383 906/Victor-Pump gas 11.30/119
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