Designed to fit the 1986 and earlier 262-400 cubic-inch Chevys, Tuned for peak torque around 3500 rpm on a 350-inch engine and it produces power from off-idle to 5500 rpm, Gains of 5 hp and 9 ft/lbs. of torque over the standard manifold on a 350 Chevy are dyno-proven, IMCA Approved intake manifold, Gasket dimensions measure 1.23" x 1.99".
