guys, i need your help please
My 1973 450se W116 has been acting very unreliable the last month. at any speed it will completely stall out, sometimes it will catch again, sometimes it doesen't.

there are alot of posts about newer cars doing this but nothing of this era.

also when i try to restart it, it will crank and fires up, but as soon as i let off the key it dies again.

i really need your help, it is on the side of the road somewhere in florida

i'm a do it yourselfer and will be willing to try anything as a learning process