What would cause a 1975 Datsun 280Z to occasionally die while driving it is not consistent to any certain situation?
Does it feel more like a fuel starvation or an electrical glitch? You rterm die needs some clarification as in, you step on the gas and nothing or sitting at idle and it quits or all of a sudden I lose power and lights. To make a wild guess I would say with what you have posted change the fuel filter and then start looking at your fuel pump. If it's electrical, I would look at battery connections first. Remove, clean, tighten. There's a start for you