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1967-1971 Plymouth GTX
Application 58 Bel Air Impala
1966-1968 Chevrolet Caprice 327 CID
Made in the USA
Holley Boost Control Solenoids 557-201 A-Body-Brake 1967-1971 Plymouth GTXSOLENOID, BOOST CONTROL Introducing the newest development from the Holley EFI engineering team. The Holley EFI High Flow Dual Port Boost Control Kit. This kit contains a set of pre installed high flow solenoids, which feature a dual O ring sealing design, preventing any boost leaks out of the manifold. A black anodized billet aluminum manifold, with built in mounting provisions. Two pre terminated connectors for a quick installation, and extra pins
