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The Stacks are Back with Hilborn’s EFI-R Individual Runner Manifolds for Big-Block Chevy Engines

By: Holley | 02/05/2021 < Back to Motor Life Home

There is simply no beating the look of stack injection! Hilborn’s new EFI-R intake capitalizes on the aesthetics and racing heritage of Hilborn’s original intake manifolds and adds the capability of modern electronic fuel injection and machining. These intakes improve throttle response, low-end torque, and high-speed power, and fit 9.800in and 10.200in deck height big-block Chevy engines when ordered with the correct valley cover.

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