ALL MOTOR B16A/B18C drag racing cams for extreme NA engines making 250hp-300hp+. Cylinder head modifications are required to avoid valve to valve contact. Ideal for big bore and long stroke engines. Fuel type race fuel, ethanol blend or methanol. Kelford Cams recommend KVS18-K valve spring and retainer kit when running this cam._x000D_\n_x000D_\nPrimary lobe spec: Intake: 270°/11.0mm | Exhaust: 262°/10.0mm
