Weiand 1985 Hi-Ram Intake Manifold, Performance Rectangular Port Heads

The Weiand Hi-Ram is a tunnel ram intake built for drag racing, tractor and truck pulling, and high-RPM marine applications, with D-shaped port runners and a large plenum chamber designed to keep air/fuel velocity high at the top of the RPM range. It mounts a 2x4 carburetor setup on a square flange. Who it suits This manifold is built for naturally aspirated competition use rather than a street engine, with a published power band of 2,500-7,800 RPM. If your engine spends most of its time below that range, a tunnel ram is the wrong choice; it's designed to come alive at high RPM, not off idle. Dimensions to check Front height is 10.12 in. and rear height is 10.93 in., so confirm hood and cowl clearance before ordering. Port size is 2.34 in. by 1.55 in., and the carburetor flange centers are 9-11/16 in. apart. Common questions Is this a street manifold? No, it's built around a high-RPM power band for racing use, not daily-driven street torque. What carburetor setup does it take? A 2x4, dual-quad carburetor arrangement on a square-bore flange.