My 1983 Seville HT4100 4.1L V8 250ci FWD has been a real pain in the ass!! anybody know if their is a way to get away from using the factory ROCKER ARM ASSEMBLY? it seems like a bad design and i keep on stripping them out even after i tap them with a M8-125. Do the ROCKER ARMS go on the assembly and get tighten down to spec. first? then install the assembly down on to the motor to spec. torue pressure? or the other way around( assembly to motor then the rocker arm to assembly)? please help!