Bingo..........Replaced the Battery Terminal Connector in the Ignition Switch Plug and replaced the Ignition switch itself (The spade end was loose on the switch which possibly could caused a resistance problem) and everything except the Tach is fine......I think the Tach has some seperate issues
But, these electrical things can make you crazy chasing them, there was probably nothing wrong with the distributor Module that was in the car, it was the terminal starting to fail.........But it's fixed and on to the next project...
Ken
(I are now smarter than I was last week)