Originally Posted by joe_padavano
The tach has nothing to do with vacuum advance. Check to see if the tach feed wire is rubbing on the brake pedal under the dash. A short there WOULD cause the car to die out.
Agreed, however, there is no short and wiring issues as I have already went through that very carefully. When I disconnected the tach from the dizzy issues gone. Like I said before, when I would touch the brakes causing a change in vacuum it would clear for a moment. This is a weird one for sure...