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The adaptors are available in different widths and register bore hole sizes to match your specific engine application and supercharger model
they won't eat up race-winning horsepower
but very vital component found in this mass orchestra of mechanics is the idle air control valve
and forged flat-top pistons matched to your bore size
Ford FE 390 427 428 2.090" 5.450" 3/8" Stainless Steel Intake Valves The adaptors are available inWhen it's time for valves, don't cut corners. Get genuine Speedmaster stainless steel valves. They're made from a tough, stainless steel alloy and are carefully designed to increase gas flow for more power. What's more, they have hardened stem tips for durability and are swirl polished.
