Edelbrock part #7176 Performer RPM intake manifold is designed for 340-360 c.i.d. Chrysler V8's and 318 c.i.d. engines with 340-360 cylinder heads. Latest technology in dual-plane design results in both excellent low-rpm torque and outstanding high rpm horsepower. Recommended for high-performance street, strip and fresh water marine applications. Accepts 1975 and earlier waterneck only. Will not accept stock Thermo-Quad carburetor. Will not fit 1992 and later Magnum engines. Match with Performer RPM heads #60779 for maximum performance.