Air Intake Systems

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IMPORTANT MARINE INTAKE MANIFOLD INFORMATION
Spreadbore (equal sized primary and secondary butterflies) Mounting Dimensions - 5-3/16" side to side x 5-5/8" front to back.

Quadrajet (Larger Secondary Butterflies) Mounting Dimensions - 4-1/4" side to side x 5-5/8" front to back

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