My brother has a 68 chevelle that we are re-assembleing. We are having trouble hooking the Tach up. For one the assembly manual doesnt show anything for the tach as to what wires go to it. And it also doesnt say which wire from the engine harness goes to the Dist./MSD box. If anyone out there has a 68 chevelle. Can you take a look and see what color wires go to the tach/dist?