Typhoon Intake Manifold The Power+Plus Typhoon manifolds are a high rise dual plane intake. These manifolds typically perform best in the 1,500 to 6,500 rpm range and also have excellent throttle response. These manifolds have larger plenums and runners which match the higher lift cams and free flowing exhaust found on many high performance street machines.Not intended for emission equipped engines. Models for SB Ford and Chevy.