I have a 92 camaro rs, its a v6 and stock. I was driving the other day and it stopped randomly and then took a few minutes to get it started again; when I got it to start again it drove but when it got to about 35 mph, it just shut down again. I had just replaced the fuel lines and filter the weekend before this happened. Could it be the fuel pump or the transmission or something different? It is an automatic transmission

 

Check your fuel pressure. If it's low then you know it's a fuel related issue. Make sure everything is connected completely if you had just done some work to your car. Check vacuum hoses spark plug connections and what not.