Tomei Camshaft Set - PONCAM - Mitsubishi Lancer Evo 7-8 4G63 GruppeM The instructions cover this in

The instructions cover this in detail for an easy installation

which creates no step with the port

all metal burrs are removed from the cylinder block and cylinder head to avoid possible stress concentration and to avoid engine damage from contamination

As standard

Rear: -19mm

Tomei Camshaft Set - PONCAM - Mitsubishi Lancer Evo 7-8 4G63 GruppeM The instructions cover this inWhen opening the intake valve during high acceleration the G from the camshaft requires to send as much mixture to the cylinder, Intake, the shortest time possible. However if the speed is too high it can damaged the Valves, Valve Seats and Valve Springs if the Acceleration G is too high. The Asymmetrical profile design given to the camshafts will allow the Intake and Exhaust Valves to fulfill the target requirement with the wider duration and high