Here`s my dilema. I have an `87 4BT from a genset. The CPL is 079. It is my understanding that these CPL`s are engine purpose specific but parts from other CPL`s can be used. Is this true? The injection pump used is a CAV and not meant for street use. Any information anyone can provide about this question and a good parts source (as I need a PE Injection pump and few other misc. parts) located in the NW or wherever, will be greatly appreciated.