Ignition problem in 67 Cuda
He must connect IGN1 and IGN2 together and route that to the hot for the MSD. IGN1 is "Run" and IGN2 is "12V when starting. Both must be connected together when using an ignition like the MSD that eliminates the ballast. Sounds like all he has is IGN2 hooked up. It goes dead when you release the key from start to run.