Need fuel pressure regulator advice

I have an 82 Ski Nautique with the 351 pcm engine. I bought the boat and it had a automobile carb and an electric fuel pump that stayed on all the time with the key on.  So I decided to go with a new quick fuel 600 and I am still waiting on it. I did get a new low pressure marine mechanical fuel pump and installed it. It ran fine with the electric pump but was dangerous I'm sure. So I changed out the pump, new lines and fuel filter. Took it to the lake and it ran fine for several hours then died and would not restart. With limited tools on the lake I noticed that the top of the carb was full of gas and im sure it was totally flooded. I dont know what my fuel pressure was. I figure it was either to high due to a malfuncitioning fuel pump or the carb just junked out. Either way had to be towed off the lake. So when my new quick fuel gets here I want to put a high quality pressure regulator inline to prevent this from happening again.  What is a good fuel pressure regulator that is not junk?

I think I'd find out where the fuel is coming from before just deciding that the pump started putting out to much pressure/volume after several hours of running well.