What is the best way to start my 454 MPI flooded engine? My engines ran perfectly all day and when I got home, where the engine sat for about 45 minutes, it would not fire up when I went to flush it out. It actually would fire up for about 2 to 3 seconds and then die. After about 6 or 7 fire and die startups it then would not fire up. I believe the engine was flodded with gas to the point the plugs were wet with gas.