The engine is a fresh .030 over 2000 360 magnum out of a Dodge truck and has a hydraulic roller cam in it already. Can I use factory stock roller lifters on a good Street/strip cam? I can imagine I will probably will have to change the valve springs too. By the way it has 14.5-15.5 inches of vacuum at idle. Does that give any indication of what size the cam may be?
