hi i hope someone can help,my car is only ruuning greens but under inspection it turns out the car is running a newman bd14 inlet cam and standard exhaust,my qustion is would i be better of replacing this cam for a standard inlet and would i also need to change the double valve springs?hope someone could help as for the power im running is the bd14 a bit much in your eyes?the turbo is a t34.63 the head has been mildly flowed and bottom end has valve cutouts but hasnt been low comp.the car feels really really laggy