Ford FE 390 427 LowRise Aluminum Intake Manifold [Satin] Speedmaster H-beam connecting rods are

Speedmaster H-beam connecting rods are one of the strongest connecting rods available

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Ford FE 390 427 LowRise Aluminum Intake Manifold [Satin] Speedmaster H-beam connecting rods areThe Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles. It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs. To remain street legal with a square bore carb, you must use one that is also approved as street legal for your application.