Fuel Pressure Regulator

[magwakeenercew2jh]

For right now, I'm running a Street DeMon (625 cfm) with an electric fuel pump. It is, I believe, running the fuel pressure too high.

I have a gauge on the line right before the carb. While everything feels and appears to be working perfectly, as far as drive-ability goes,
the pressure gauge is pinned (15 + lbs) when the fuel pump is on. Same reading while the truck is running (while carb is drinking ).

Although there are a good test-number of miles on this combo of fuel delivery on RAT (probably 350 +/-) I've noticed a little yellowing
around the carb.... so I think I better ask for tips on a good fuel pressure regulator before I blow something out in the carb....or worse.

What do you use? I'll check the DeMon book for their suggested pressure, but what pressure do you all like?