6 Pack Issues

I’ve been running a 6 pack on my 340 for a long time. The only thing I’ve had to do recently is install a fuel pressure regulator and gauge. These carbs do not like a lot of fuel pressure. Right now mine is set to 3.5 psi which works great. Without the reg it was running 8 psi and the floats could not control it resulting in flooding out and having to wait about an hour or that trying to start by holding full throttle until it caught and cleaned out.

I’ve only had vapor lock (boiled gas) one time at the track when I was not thinking and ran a new feed line right where the open headers were blowing on it……you can imagine how I felt after discovering that.

Like other posters said- are you sure it’s a boiling fuel problem? Or is it a flooding problem?