Almost every high performance car has at least a single over head cam design. Cars advertise having Duel overhead cams and most people prefer overhead cams to pushrods. Most people think pushrods are dead. However they seem to be making a come back. With V.V.T. it will mean that pushrods will stay competitive. In the last five years the GTS category at Le mans has been dominated by pushrod engines. The Viper GTSR,the corvette C5R,and the restricted SaleenS7R. The dueloverhead cam engines cant compete. So do you think the pushrod design is dead or under developed.