The Dart SHP Small Block Chevy Dual Plane Intake Manifold is a perfect match for Dart Dart SHP Heads as featured in the performance proven Dart SHP Top End Kits. The dual plane design maximizes mid-range torque, and a ribbed plenum floor promotes better fuel atomization. A boundary layer of cool air beneath the plenum and runners insulates the fuel/air mixture from engine heat, this productes a denser intake charge and makes more power!